List of One-Punch Man characters

This is a list of the canonical fictional characters appearing in the Japanese manga series One-Punch Man with story by One and art by Yusuke Murata.

Main characters

Saitama

Voiced by: Makoto Furukawa (Japanese); Max Mittelman (English)

The title character is a bald-headed 25-year-old man who has been bored of fighting because he is easily able to defeat enemies with a single punch.^{Vol. 1} He lives in an apartment in the city. Three years prior to the start of the series (and when he had hair) he was applying for jobs as a salaryman, where he defeats a a crab-like monster that attempted to kill a child.^{Ch. 2} He says he became a hero for the fun of it.^{Ch. 5}

Genos

Voiced by: Kaito Ishikawa (Japanese); Zach Aguilar (English) Genos (ジェノス, Jenosu) is a 19-year-old cyborg who becomes Saitama's disciple after bearing witness to Saitama's easy victory over Mosquito Girl.^{Ch. 6-7} Four years prior to the start of the story line, his family was killed by a rampaging cyborg. Genos was nearly killed in the attack and his body was destroyed so, to keep him alive to stop the rampaging cyborg for justice, a scientist named Dr. Kuseno took Genos in and modified his body to make him a cyborg with destructive capabilities. However, Genos was steadfastly convinced that justice demanded vengeance against and destruction of the cyborg.^{Ch. 7}

Hero Association

The Hero Association is a superhero organization founded by the multi-millionaire Agoni in order to fight monsters, crimes, and various threats. The Hero Association uses a class-system with 4 classes (from C to S) and ranks within those classes to organize every superhero accordingly. Right now, the Association counts about 547 superheroes (made up of 17 S-Class superheroes, 39 A-Class superheroes, 101 B-Class superheroes, and 390 C-Class superheroes). The Association was founded by Agoni three years ago prior to the main storyline when his grandson was saved from the monster Crabrante by an unknown bystander (who ironically turns out to be Saitama himself). The Association is financed by donations from citizens to protect them. Despite its lofty ideals, the Hero Association is full of corruption and very shallow in judging heroes and monsters. It considers the lower class heroes as expendables and it doesn't really care about their lives. The organization judges things too much by appearance and end up making huge errors. After the attacks from the Monster Association and from the Garou incident, the public has been criticizing the Hero Association for its lack of effectiveness in handling the disasters.

S-Class Superheroes

S-Class (S級, S-kyū) is the highest ranking class of the Hero Association. In addition to Genos, they consist of the following characters:

Blast

Blast (ブラスト, Burasuto) - Rank 1 is the most powerful superhero in the whole Association alongside Saitama, whose whereabouts and identity are currently unknown. He looks like an average man with a superhero costume and a cape similar to Saitama's outfit except with fiery contour around the zippers. He is said to show up on his own terms and seldom responds to requests from the Hero Association indicating that just like Saitama, he also looks for a worthy opponent. As one official of the Association mentioned, Blast may only truly reveal himself when a "God" level threat endangers humanity.

At an earlier point in his life, he saved a younger Tatsumaki from a monster at a research facility and inspired her to become Terrible Tornado.

Terrible Tornado

Voiced by: Aoi Yūki (Japanese); Marieve Herington (English)

Terrible Tornado (戦慄のタツマキ, Senritsu no Tatsumaki) - Rank 2 is an incredibly strong esper possessing unmatchable psychic powers. She is youthful in appearance (Despite being 28, Saitama often mistakes her for a child) and often acts very childish, being very condescending and selfish when interacting with others. Terrible Tornado is prone to tantrums when people ignore her, and her behavior is revealed to stem from childhood traumas of being tested in research facilities and witnessing her sister Fubuki being bullied for also possessing telekinetic powers. As a result, she has developed an overprotective relationship with her sister and makes a point not to forge friendships. This however caused Fubuki to develop an inferiority complex and caused a rift between the sisters. Tatsumaki does come to save her sister when she senses her in danger.

At a young age, Tatsumaki was imprisoned in a research facility. She was attacked by a monster that was also held in the research facility. Blast arrived and killed the monster in an instant, but he pointed out that she could have killed the monster on her own. He then encouraged Tatsumaki to never expect anyone to come and save her, which lead to her philosophy of depending on herself alone rather than on others. This eventually led to Tatsumaki becoming a superhero named Terrible Tornado.

True to her rank, she is much stronger than even her fellow S-class heroes and is able to defeat even "Dragon" level monsters with little to no effort (while some of the other S-Class heroes can't even defeat a single "Dragon" class monster without help); with her immense telekinetic powers she could uproot an entire underground base along with all of its inhabitants, send hundreds of artillery shells launched by a space ship back at the ship with ease, and even pull a meteor from space to destroy a monster.

Despite her powers, Tatsumaki still has limitations. She was defeated when she simultaneously fought against multiple Dragon level monsters. Although Tatsumaki was winning, Psykos took advantage of her distraction and hit her on the head from behind, temporarily weakening Tatsumaki's powers. Only three characters have shown some resistance to her powers: Golden Sperm and Garou. The third, Saitama was easily able to shrug off Tatsumaki's attacks. The best Tatsumaki could do was cause Saitama's muscles to twitch. She found it excruciatingly difficult (she began to bleed profusely due to exhaustion and no longer being able to keep her injuries at bay, nearly throwing up) to telekinetically lift Saitama more than a few feet in the air and immediately dropped him on the ground.

Silver Fang

Voiced by: Kazuhiro Yamaji (Japanese); Will Barret (English)

Silver Fang (シルバーファング, Shirubā Fangu) - Rank 3 is an expert martial artist, master of the "Water Stream Rock Smashing Fist" (流水岩砕拳, Ryūsui Gaisai-ken), and one of the most powerful human combatants in the world, despite his age indicating that he is the oldest hero in the whole Association. His real name is Bang (バング, Bangu) and he has an older brother named Bomb, who is also a martial artist and likely close to Silver Fang in strength, although he does not do hero work. He owns a dojo with only a single student Charanko after Garou, a former disciple of his, attacked the dojo and defeated every single student to the point of near death. That incident was a painful memory for Bang and he is in look out for disciples to pass on his martial arts.

As a hero, Bang is wise and displays a great deal of patience when compared to others in S-class, and often scolds other heroes for being too prideful and selfish. He is one of the few heroes to recognize Saitama's true power which he witnessed when Saitama destroyed a meteor that was going to wipe out Z-City. Bang is well acquainted with Saitama and Genos and has lot of respect for Saitama.

Following Saitama defeating Garou and the battle against the Monster Association, Bang had a talk with Atomic Samurai telling him that he's going to retire.

Atomic Samurai

Voiced by: Kenjiro Tsuda (Japanese); Kyle Hebert (English)

Atomic Samurai (アトミック侍, Atomikku Samurai) - Rank 4, real name Kamikaze (カミカゼ) is a samurai-themed hero who sports a kimono with an atom symbol on the back of it. He wields a daisho and is the most powerful swordsman of the Hero Association, claiming to have the ability to slice even atoms in half. Atomic Samurai is a condescending and very proud individual, as evidenced by his refusal to shake Saitama's hand upon first meeting him. Atomic Samurai is also a very stupid person. While testing King's strength, even though King was unable to draw out the katana and muttered gibberish, Atomic Samurai thought that King cut the apple on a cellular level and that he possessed high wisdom. Atomic Samurai also has three known disciples, all of whom are close to but do not reach Atomic Samurai himself in strength, Iaian, Okamaitachi, and Bushidrill. Atomic Samurai's disciples are all in A-Class where they are unable to move up to S-Class due to Amai Mask. His real name is Kamikaze.

He was modeled after Kyuzo from The Seven Samurai.

Child Emperor

Voiced by: Minami Takayama (Japanese); Sara Cravens (English)

Child Emperor (童帝, Dōtei) - Rank 5 is a child genius and inventor who uses his technological creations to fight and is the youngest hero in the whole Hero Association. Despite his superior intelligence and weapons, he decided to train his body extensively to become able to fight also with his bare hands. However, even if he's relevantly stronger than a normal fighter, his body is too young to make him strong enough to be a decent S-Class hand-to-hand fighter. Child Emperor's true strength resides in his sophisticated gadgets and massive weapons that he created by himself that are contained into his school bag. He's also a former assistant of Metal Knight and has a personal lab in Y-City. He wears a light buttoned-up collared shirt with dark shorts and always carries his black school bag with him.

Metal Knight

Voiced by: Tesshō Genda (Japanese); Taylor Henry (English)

Metal Knight (メタルナイト, Metaru Naito) - Rank 6 is a mysterious scientist who uses various remote-controlled robots with high destructive capability, but also others with large assortment of capacity, from reconstructions to healing functions. His real name is Dr. Bofoy (ボフォイ, Bofoi).

With the aid of his inventions, he's reputed to be one of the strongest and most dangerous hero of the Heroes Association and he is the former master of Child Emperor. Metal Knight is not shown most of the time, since he's very reserved and act mainly through his fighting robots, till now he was fully seen only in one occasion during which he wore a lab coat over a light shirt. He made his first appearance during the catastrophe of the giant meteor that threatened Z-City. During this time, he sent a huge remote controlled robots to the scene which met Genos, there for the purpose of trying to stop the meteor and wouldn't collaborate with Genos.

Following the fight against Lord Boros and the Dark Matter Thieves, Metal Knight started salvaging some equipment from the Dark Matter Thieves' destroyed ship which he used to rebuild A-City. Prior to the fight against the Dark Matter Thieves, Drive Knight tells Genos not to trust Metal Knight which he'll know why soon enough.

He is shown to be callous as he only cares of his own safety and building advanced military equipment which is a potential threat to humanity. Dr. Bofoy is wary of Saitama when the latter effortlessly destroyed his latest battle robots.

King

Voiced by: Hiroki Yasumoto (Japanese); Rich Brown (English)

At first believed to be the most physically powerful man on the planet and feared even by others in the S-Class, King (キング, Kingu) - Rank 7 is in actuality a completely normal human who has accidentally been credited for most of Saitama's achievements. The only two things abnormal about King are his God-level gaming skills and his exceptionally loud heartbeat when scared, which is ironically feared by his enemies and mistaken as his impressive fighting spirit called "The King Engine". He has three long scars on the left side of his face, caused during one of his first meetings with monsters which Saitama killed and typically wears casual habits, sometimes with some anime references on. People believe that King received those scars when he was fighting a God level monster, when actually he was scarred by a Tiger level monster when he was running away. While King possesses no superpowers, no one in the hero association except Saitama is aware of it, with Saitama himself not minding that King got most of Saitama's pre-Association credit. Saitama has kept this a secret even from Genos, although he warned King to either live up to the public expectations or quit.

King's induction into the Hero Association is one of the few examples of the Association's blunders. He is actually an unemployed, cowardly person with who is a video game nerd, having formerly been a Video Game Champion. Ironically, despite being hailed as one of the best fighters, King had actually never even brawled in his entire life. He was an innocent bystander often caught by the attacks of many monsters. He used to close his eyes and cower and when he opened, the monster was already slain by Saitama. Saitama never used to linger around the scene, so the Hero Association (judging on King's impressive appearance) promptly concluded that King had slain monsters and gave him all the credit. Without King's consent, the Hero Association inducted him directly to the S Class without having him take the physical and written tests and was hailed as the strongest newcomer of S Class. King did not protest due to the S Class perks and wealth and he soon became one of the most popular heroes. King is often targeted by monsters and assassins, however, due to his luck, his enemies overestimate him and end up running away because of his appearance.

King is one of the few heroes to recognize Saitama's true power and is a very good friend of the hero. He remembers Saitama who was actually the one to save King from the monsters in the past. He tries to introduce Saitama to new anime, but the latter finds them boring. Saitama often complains that King goes all out in video games. King's skills in video games come useful when he single-handedly defeats the entire Fubuki Group in a game when Saitama, Genos and Bang lose. King respects Saitama's strength and was afraid why Saitama had not showed up when Garou was rampaging. Upon witnessing Saitama's victory over Garou, King was in complete awe.

Zombieman

Voiced by: Takahiro Sakurai (Japanese); Vernon Dew (English)

Zombieman (ゾンビマン, Zonbiman) - Rank 8 is a practically immortal hero who can regenerate from any wound, who is later revealed to be a former test subject of the House of Evolution. During a mission to investigate the House of Evolution current activity, he found out it became a mere takoyaki restaurant and after asking to Doctor Genus the reason, he has become aware of Saitama's true power, though he still has his doubts, and begs the Doctor in hopes to remove the limiter to obtain an unlimited super strength like Saitama. His fighting abilities are not keen as those of the other S-Class heroes, so he uses various kinds of weapons.

Drive Knight

Voiced by: Yōji Ueda (Japanese); Todd Haberkorn (English)

Drive Knight (駆動騎士, Kudō Kishi) - Rank 9 is a black and silent one-eyed cyborg who is shrouded in mystery, since Genos asserted that nobody knows his true origins nor goals. He made his first appearance at the S-Class Hero Association meeting, perpetrated in the headquarter of the Association in A-City, moments before the The Dark Matter Thieves attacked. After the spaceship started to attack, Drive Knight left upon stating that he has errands to run and warns Genos to beware of Metal Knight declaring that Bofoy is his enemy and that he'll soon find out why. When in combat, he utilizes a shape-shifting box that transforms into any weapon he desires.

Pig God

Voiced by: Daisuke Namikawa (Japanese); Marc Diraison (English)

Pig God (豚神, Buta Gami) - Rank 10 is an extremely obese hero with superhuman strength that helps support his body weight and an incredible resistance to injuries, who is always eating and defeats his enemies by swallowing them since he can open his mouth enormously. He's dressed with a dark sweater and light pants.

Pig God is first shown at the S-Class Hero Association meeting, perpetrated in the headquarter of the Association in A-City, moments before the Dark Matter Thieves attacked. He didn't take part in the battle since he got hungry and left to get some food which he later explained to Metal Bat.

Superalloy Blackluster

Voiced by: Satoshi Hino (Japanese); Zeno Robinson (English)

Superalloy Blackluster (超合金クロビカリ, Chōgōkin Kuro-bikari) - Rank 11 (also known as Superalloy Darkshine) is a black bodybuilder whose muscles are stronger than steel and who lost all his hair from training like Saitama. He always goes around almost naked, only with his necktie and black briefs on, to show the others his statuesque body, of which he's very proud.

He was originally a weak child who could not even lift small weights, building up to superhuman levels over time. Despite his immense physical capacity (one of the highest in the Heroes Association) and apparent bravado, Alloy struggles to overcome his self-doubt.

Watchdog Man

Voiced by: Yūji Ueda (Japanese); Arnie Pantoja (English)

Watchdog Man (番犬マン, Banken Man) - Rank 12 is a highly efficient and stoic hero responsible for dealing with mysterious beings activities in Q-City, who is always seen wearing a dog costume. He has shown to be incredibly strong and an expert in dealing with monsters, despite his size and look.

Watchdog Man was present at the S-Class Hero Association meeting, perpetrated in the headquarter of the Association in A-City, moments before the The Dark Matter Thieves attacked. He wasn't seen in battle there since he had to go make sure that Q-City is safe which he explains to Metal Bat.

While rarely seen in the middle of his fights, he is implied to be an incredible fighter, usually standing on piles of defeated monsters without being injured or changing his expression. Watchdog Man even defeated and badly injured Garou in his pre monster form.

Flashy Flash

Voiced by: Kōsuke Toriumi (Japanese); Lex Lang (English)

Flashy Flash (閃光のフラッシュ, Senkō no Furasshu) - Rank 13 is a hero with feminine features whose power is tremendous speed (though Saitama is still much faster than him). His speed is so great, in fact, that he has attacked at speeds where his reflexes can't match his movements, and he can't register what he has done until the attack is completed. In combat, he uses his beloved sword named "Instakill", but is capable of fighting hand-to-hand as well. Flashy is also one of the few heroes to acknowledge Saitama's superior strength after he was able to easily dodge Flashy's fastest attack.

Tank-Top Master

Voiced by: Katsuyuki Konishi (Japanese); Patrick Seitz (English)

Tanktop Master (タンクトップマスター, Tankutoppu Masutā) - Rank 15 is a tall, muscular, highly athletic man, professionist of the renowned tanktop style of fighting with superhuman strength, and the leader of a group of tanktop fighting style practitioners called the Tanktopper Army. Unlike his brothers, minor heroes who bear a grudge against Saitama, Tanktop Master is more level-headed and wise. He is very caring man for his brothers-disciples and other colleague heroes, like Mumen Rider. He has a strong sense of justice, shown when Garou went too far injured against him and he decided to spare his life, under Mumen Rider's advice, but is also a really proud individual, always trying to reach new power and surpass others with his tanktop philosophy.

Metal Bat

Voiced by: Wataru Hatano (Japanese); Sam Riegel (English)

Metal Bat (金属バット, Kinzoku Batto) - Rank 16 embodies the stereotype of a classic Japanese banchō delinquent, as reflected by his dialect. He uses a metal bat for a weapon, which he wields in a street-fighting fashion. He's shown to have a very potent fighting spirit that grants him superhuman abilities, allowing him to battle on level terms with a combat expert like Garou, even after being severely injured. Metal Bat caught Garou off guard and could have killed him, if his little sister did not stop him. His impulsive attitude is an element of his fighting style, but he loses his rash mannerisms when he is around his little sister, whom he cares deeply about.

Puri-Puri Prisoner

Voiced by: Masaya Onosaka (Japanese); Ray Chase (English)

Puri-Puri Prisoner (ぷりぷりプリズナー, Puripuri Purizunā) - Rank 17 is a homosexual hero with great tonnage and superhuman physical strength, who constantly finds himself in prison because "he can't resist molesting cute boys." So he's always dressed with a prison uniform. He maintains a list of boys he has an interest in, sometimes without their knowledge. Puri-Puri Prisoner has the ability to drastically increase his muscle mass to fight at full strength, which he often refers to as his "Angel Form". In the process of reaching this "form", he often tears his clothes apart leaving him completely nude.

A-Class Superheroes

A-Class (A級, A-kyū) is the second tier of superheroes in the Hero Association. They are assigned a numerical ranking within the tier. Among the known A-Class superheroes are:

Handsome Kamen Amai Mask

Voiced by: Mamoru Miyano (Japanese); Ben Lepley (English)

Amai Mask (イケメン仮面アマイマスク, Ikemen Kamen Amai Masuku) is a beautiful model, singer, and celebrity, considered the most popular person in the world. He always dresses in designer clothing. Endowed with immense combat abilities, he is one of the strongest characters of the series and surpasses even some S-Class heroes. His body seems to be semi-indestructible, capable of healing quickly from potentially lethal wounds; the majority of his powers remain a mystery. In a later chapter, he shows obsession with Saitama and his powers due to the way he fights because it is fast and clean just like Amai Mask likes it.

Despite his charismatic exterior, he hides a merciless dark side, refusing to take prisoners where he instantly executed all of Boros's surviving servants due to his beliefs about evil and the necessity of its extermination. Befitting his status as a celebrity, he also believes heroes must be popular and beautiful. Thus, he remains in A-Class at Rank 1 to keep less beautiful/popular/powerful heroes from tarnishing other superheroes, and ultimately, his reputation which often annoys the S-Class heroes.

He is very narcissistic, having a philosophy that powerful heroes must also look very beautiful to embody justice. Before defeating Amai Mask, Garou criticizes his philosophy, calling him a hideous narcissist. A while after Amai Mask witnesses Saitama defeat Garou, he speaks to a group of wannabe heroes of the beauty of overwhelming power, which he believes Saitama possesses.

Iairon

Voiced by: Yoshimasa Hosoya (Japanese); Xander Mobus (English)

Iaian (イアイアン, Iaian) is the top disciple of the S-Class hero Atomic Samurai, he is extremely devoted to his master. He wears a medieval iron armor similar to a knight and uses a long sword to fight, as shown, with the ability of a great swordsman. He accompanied Atomic Samurai to the S-Class meeting in A-City and was caught by the destruction of the city during the Dark Matter Thieves invasion. During the fight, he loses his left forearm to Melzalgald.

He is listed as A-Class, Rank 2. Other heroes note that he would be an S-Class meeting were it not for Amai Mask.

His name is references iai, traditional Japanese sword-fighting, and aian, the Japanese word for iron.

Blue Fire

Voiced by: Kyle McCarley Blue Fire (ブルーファイア, Burū Faia) is a hero said to have superior combat abilities, near to those of S-Class heroes. His ranking is A-Class, rank 6. He wears a kung fu suit and wields small flame throwers underneath the sleeves of his coat, that he uses to burn his foes. He decided to take down the rumored monster in Z-City after the creature defeated Golden Ball and Spring Mustachio, but he came to the scene after it was already beaten by Saitama. Blue Fire lost one of his hands while fighting Garou when the latter brutally ripped the limb.

Stinger

Voiced by: Tomokazu Seki (Japanese); Chris Hackney (English)

Stinger (スティンガー, Sutingā) is arguably one of the most skillful fighters of the Hero Association's A-Class, initially listed on the anime profile as Rank 11. : he fights with great agility and using his beloved special spear "Bamboo Shoot" to pierces his enemies. He's dressed with a tight black suit made of bandages, over which wears a loose white vest. During the Sea King arc, he single-handedly took down a fraction (few) of the Sea King's soldiers while Saitama took down the majority. However, he exhausted himself tremendously doing so and ends up beaten unconscious by the Sea King himself.

Lightning Genji

Lightning Genji (電光ゲンジ, Raikō Genji), ranked 17 in A-Class, has an appearance that strongly resembles Spark Man from the old Mega Man video game franchise, usually fighting with two combat sticks that are charged with electricity. He's presumably a decent fighter, since it was sent alone to D-City to investigate the mysterious beings activities in there and, in another mission, he weakened the Grizzly Nyah, a giant monster's offspring, with the help of Stinger (monster that was, in the end, defeated by Saitama).

Lightning Max

Voiced by: Sōichirō Hoshi (Japanese); Ben Pronsky (English)

Lightning Max (イナズマックス, Inazumakkusu) or simply called by his real name, Max, is a young prodigious karateka with a great agile combat in sportive outfit and a lightning symbol on his left cheek, who prefers to fight with kicks. His ranking in A-class is 20. To support his fighting style, Hyper Karate (ハイパー空手, Haipā Karate), Lightning Max dons special shoes modified with mini-rockets and gunpowder, making him capable of explosive kicks. In the anime, he and Smile Man were sent to A-City at the start of the series to stop Vaccine Man. They get battered and beaten by the monster with ease. He decided to intervene to the case of the rumored monster in Z-City after the creature defeated Golden Ball and Spring Mustachio, but he came to the scene after it was already beaten by Saitama. Lightning Max is among the superheroes that are defeated by Sea King. During Dark Matter's invasion in anime, Lightning Max and Stinger assist Mumen Rider for a rescue operation.

Smile Man

Smile Man (スマイルマン, Sumairu Man), ranked 27 in A-Class, is a masked hero with a big smile on his suit, which gives him his name, and using a big kendama as main weapon. In the anime, he and Lightning Max were sent to A-City at the start of the series to stop Vaccine Man, but they get battered and beaten by the monster with ease. He decided to intervene to the case of the rumored monster in Z-City after the creature defeated Golden Ball and Spring Mustachio, but he came to the scene after it was already beaten by Saitama. In the more recent manga issues he is seen to have two brothers who rank below him, and share costume design as well as the choice of weapon being oversized toys and being named after emotional reactions.

Golden Ball

Voiced by: Sota Arai (Japanese); Kaiji Tang (English) Golden Ball (黄金ボール, Ōgon Bōru), ranked 29 in A-Class, is a fairly skilled combatant which appearance is that of a stereotypical hoodlum, often carrying a lollipop in his mouth. His weapon of choice is a mechanical slingshot, which he uses to fire golden balls made by a special metal that morph into bullets of various caliber and design. He is often paired with Spring Mustachio for missions and they usually share free time, being good friends. He went to Z-City together with Spring Mustachio to find out the rumored monster that could live there, in order to rank up in A-Class.

Spring Mustachio

Voiced by: Makoto Yasumura (Japanese); David W. Collins (English)

Spring Mustachio (バネヒゲ, Bane Hige), ranked 33 in A-Class, is an extremely skilled combatant with superb combat reflexes, resembling a matador in elegant clothes. He is able to morph his cowl into a fencing sword, but it is probably just a trick. His peculiar rapier's attacks are able to pierce through granite and steel with ease, since his rapier is made of a particular metal, probably the same of Golden Ball's bullets, and can morph shape and dimension. He is often paired with Golden Ball for missions and they usually share free time, being good friends.

Heavy Kong

Heavy Kong (ヘビィコング, Hebī Kongu), ranked 34 in A-Class, is a tall, bald-headed, bearded, and muscular man whom looks like a caveman-themed wrestler with a tattoo that resemblance the one of Mike Tyson. He's probably fairly strong, since he was sent alone to investigate mysterious beings activity in W-City. He fought with Peach Terry and other A-Class heroes against a big monster's offspring, the Grizzly Nyah, finding the task nearly impossible, since it was too much strong and finishing wasted by the monster.

Snek

Voiced by: Shin-ichiro Miki (Japanese); Kirk Thornton (English)

Snek (蛇咬拳のスネック, Jakōken no Sunekku), initially ranked 38 in A-Class, was the lowest ranking A-Class hero, the 38th, after he was promoted to rank 37. He wears a smoking jacket whose texture resembles the python's skin, using a hand-to-hand fighting style similar to the snake-style. He has stated in the manga that his suit is actually the skin of a snake monster he defeated, and it is impervious to clawss, fangs, and beak attacks, presumably making him immune to piercing damage. He was sent alone to investigate mysterious beings activity in F-City, reporting that Hammerhead was spotted there in suspect attitudes (he was only searching for job though). He works directly in the Heroes Association 6th Official Examination Center and delivers seminars to heroes who have recently passed the official entrance exam. In fact, it was him that made the seminar welcome to Genos and Saitama; he found their behavior intolerable, since he was totally ignored by them. He attempts newbie-crushing on heroes that he feels are a threat to his rank, as he tried to do later that evening with Saitama, since he found out his true potential. However, Saitama beat him unconscious almost without noticing it.

Despite his sneaky nature, he takes his job quite seriously since he decided to face the Sea King in a shelter, in order to protect the civilians in there, even if he was alone with minor heroes; he was quickly defeated, but he bought enough time to let Genos enter the scene and, with his intervention, he saved many lives. He decided to participate, for the sixth time, to the Super Fight tournament, during which he wore a typical oriental martial arts suit; it is said that he was always able to reach the top 4 positions in the previous editions, though he never won.

In the original webcomic, his name was Acrobatic White Suit (アクロバティック白スーツ, Akurobatikku Shiro Sūtsu): he wore a white suit instead of a snake-patterned one and he and his fighting style had nothing to do with snakes. It is stated that he doesn't like much the S-Class heroes.

B-Class Superheroes

B-Class (B級, B-kyū) is the next tier of superheroes. Saitama is initially placed in this class at rank 63. Notable superheroes include:

Hellish Blizzard

Voiced by: Saori Hayami (Japanese); Laura Post (English)

Blizzard from Hell (地獄のフブキ, Jigoku no Fubuki) - Rank 1 is a powerful esper. She is notorious for searching out recruits to work under her within the B-Class as part of the Fubuki Group. While appearing confident and calm on the surface, she is in fact incredibly insecure and frustrated at living in the shadow of her older sister Terrible Tornado who is a far more powerful and talented esper than she is. As such when she attained her rank in the B-Class, she refused to move up as she believed she could never attain to reach highest A-Class ranks by herself and instead decided to recruit others in B-Class, believing that their collective strength would one day outmatch her sister's singular strength. Her elder sister is S class hero Tatsumaki.

She is one of the few heroes to recognize Saitama's power when she saw him fight on many occasions and has lot of respect for him. She is obsessed with making Saitama join her group, but he refuses each time as he doesn't believe in her philosophy. Fubuki is surprised that Saitama is well connected with Genos, Bang, and King. She allies with Saitama occasionally.

She is shocked to see Saitama defeat Garou and fight Tatsumaki on equal terms and acknowledges that he "has reached the top most level". After witnessing Saitama's power against Tatsumaki, Fubuki decides to overcome her inferiority complex and urges her group to aggressively level up to A Class.

Eyelashes

Voiced by: Yoshiaki Hasegawa (Japanese); Sean Chiplock (English)

Eyelashes (マツゲ, Matsuge) - Rank 2 is a hero with long eyelashes wearing a black suit, he's the second-in-command of the Blizzard Group and the principal subaltern of Fubuki. He works in couple with Mountain Ape most of the time. He fights in a peculiar way, using a couple of eyelash curlers as a weapon which can occasionally morph and be turned into two couples of war blades, similarly to Spring Mustachio and Golden Ball's weapons, called "Retina Eyeleteer". During the Demonic Fan side story he and other 20 members of the Fubuki Group took down a C-Class criminal, Banero, before facing the Demonic Fan, together with Fubuki and the rest of group, being easily overcome by it (the Demonic Fan was eventually first dismantled by Tatsumaki and then totally destroyed by Saitama).

Wild Monkey

Mountain Ape (山猿, Yama Zaru) - Rank 3 is a very tall man wearing a black suit. He's the third in command of the Fubuki Group and works in couple with Eyelashes most of the time. Mountain Ape fights with his bare hands, counting on his wide physical force, which he can increase by switching into a "Wild Mode", like those of wild animals, particularly the strength of the apes.

During the Demonic Fan side story he and other 20 members of the Fubuki Group took down a C-Class criminal named Banero before facing the Demonic Fan, together with Fubuki and the rest of group, being easily overcome by it. The Demonic Fan was eventually first dismantled by Tatsumaki and then totally destroyed by Saitama.

Jet Niceguy

Voiced by: Yoshiaki Hasegawa (Japanese); Arnie Pantoja (English)

Jet Nice Guy (ジェットナイスガイ, Jetto Naisu Gai) - Rank 50 is a cyborg whose appearance is similar to Mumen Rider, wearing boxing gloves. He is known to be an average fighter. Jet Nice Guy decided to face the Sea King in a shelter, in order to protect the civilians in there, even if he was alone with minor heroes; he was quickly pierced by the Sea King's fist for jumping in alone. However, he survived due to his cyborg body and he bought enough time to let Genos enter the scene and, with his intervention, he saved many lives.

Triple Staff Lilly

Voiced by: Ari Ozawa

Lily of the Three Section Staff (三節棍のリリー, Sansetsukon no Rirī) - Rank 74 is a young woman with an hasp on the hair similar to a flower. She's one of the Fubuki Group members and wears the typical black suit. Lily iss very loyal to Fubuki and would do anything for her leader. She fights with a three section staff, that carries always with her. During the Demonic Fan side story she and other 20 members of the Fubuki Group took down a C-Class criminal, Banero, before facing the Demonic Fan, together with Fubuki and the rest of group, being easily overcome by it (the Demonic Fan was eventually first dismantled by Tatsumaki and then totally destroyed by Saitama). When the Fubuki Group was in need of a new car, Lily started a part-time job to earn the amount required like the other members. Thanks to Fubuki's intervention, which got the bounty of some C-Class and B-Class criminals, the group finally got its own car. When the Fubuki Group went to the Heroes Association headquarters prison for monsters in order to let Fubuki interrogate Psykos, Lily and the other members were appointed to guard the entrance, for the purpose of slow down Tatsumaki. She was knocked out by the S-Class hero with most of the other members with ease. After few times, Lily and the rest of the group recovered strength and reached Fubuki, which told them she intended to disband the group (to keep safe the members from Tatsumaki's fury) and left to finish the fight with her older sister, but Lily and the other members didn't want to quit and followed Fubuki to lend her a hand in her fight. In fact, Lily and the rest of the group joined Fubuki when she was about to face again Tatsumaki and, after all the members prepared to fight at their top, the fight was stopped due to the still convalescent status of Tatsumaki, which still didn't recovered from the harsh war with the Monster Association, and the arrive of Saitama, which returned after he was trapped underground by Tatsumaki. Fubuki then, together with her beloved group, prepared to come back to the heasquarter and settle the monsters which escaped during her duel with the sister.

Tank-top Black Hole

Voiced by: Atsushi Imaruoka (Japanese); Joshua Tomar (English)

Tanktop Black Hole (タンクトップブラックホール, Tankutoppu Burakku Hōru) - Rank 81 is one of the many brothers of the S-Class hero Tanktop Master and, like the other brothers, he possesses an athletic body. He's known to be a decent fighter, since he asserted he has a grip strength of 200 kilo's, and quite smart as shown when he turned the crowd to his favour when squaring up to Saitama. After the meteor incident, Saitama got promoted from one of the lowest ranks to rank 5 in C-Class and Tanktop Tiger, thinking he cheated, called his brother Tanktop Black Hole to settle things up. In an attempt to sabotage his public image, Tanktop Black Hole shouted that Saitama was the responsible for every damage in the city because he destroyed the meteor in a wrong way, turning the mob against Saitama. He then challenged him together with his brother in a public hero fight in order to make justice (he was only trying to get rid of him though), however, the two brothers were easily knocked out by Saitama, who declared that he did what he could to cause the least damage as possible.

During the Grizzly Nyah side story he and Tanktop Tiger were appointed to keep anyone not allowed out of the dangerous zone where the monster was run about.

When Tanktop Vegetarian came to Garou with all the Tanktop Fighters and even with Tanktop Master to obtain revenge, Tanktop Black Hole was present to support his brother. He was defeated in no time by Garou, together with the other Tanktop Fighters.

His tanktop is black colored, a nod at his hero name.

Mushroom

Mushroom (マッシュルーム, Masshurūmu) - Rank 93 is a girl with a mushroom-like type of hair who wears a bandit mask and mushroom-like shoulder pads. She was sent to investigate mysterious beings activities in H-City along with C-Class hero Horse-Bone.

C-Class Superheroes

C-Class (C級, C-kyū) is the lowest tier of the Hero Association. When a new superhero joins, they start out here unless they managed to score high enough to be put in any of the higher classes. They must perform weekly heroic acts or else they will be removed from the Hero Registry. Among the C-Class superheroes are:

Mumen Rider

Voiced by: Yuichi Nakamura (Japanese); Robbie Daymond (English)

Mumen Rider (無免ライダー, Mumen Raidā) - Rank 1 is an average person, suited with a cyclist equipment, seen fighting against odds he has no chance surviving. He is famous for travelling with, and figuratively fighting with (as a weapon), his bicycle named "Justice" (ジャスティス号, Jasutisu-gō). He is one of the few who acknowledges Saitama's true power. Despite being fairly useless, his popularity with the public and his devotion has gained him top rank of the C-Class. In fact, he was also at the same school as Saitama when both were beaten up by the sleeveless bullies, during the Piggy Bacon side story. During that period he had already begun to act like a hero, calling himself "Name-less Bicycle Commuter". He at one point attempted to stop the two delinquents who attended the school and took some people's money; it was later insinuated that he was beaten up by them. Even if it's stated that he could rank up to B-Class, he decided to remain the first ranked C-Class hero because he doesn't feel ready for B-Class yet.

Mumen Rider makes his first appearance when the Paradisers were causing havoc in the city streets. He tried to oppose the criminal group, but being beaten down in an instant. The news media later gave him the credit for defeating the Paradisers when it was really Saitama and Speed-o'-Sound Sonic that did the job.

When J-City was attacked by the Seafolk, he decided to run into it ignoring the orders from the headquarter to retreat, since the situation was out of his range. When he came to the scene, the Sea King was about to kill a seriously injured Genos and Mumen Rider decided to fight him. Despite being heavily outclassed, Mumen Rider continued the battle until he was almost killed by the Sea King, but he bought enough time to let Saitama arrive and save the situation. Some time later, after Saitama is promoted to B-Class, Mumen Rider met him at an oden shop and thanked Saitama for saving his life.

In the anime, he appears at Hero Association headquarter in A-City during the invasion of the Dark Matter Thieves, in order to help out with the rescuing operation together with Lightning Max and Stinger.

Mumen Rider reappears as one of the targets of Garou's "hero hunt"; before they could start a battle, the Tanktop Fighters led by Tanktop Master came to avenge Tanktop Vegetarian and Tanktop Master himself challenged Garou. During the fight between Tanktop Master and Garou, after Tanktop Master gained the upper hand and was preparing to finish him off, Mumen Rider stopped him, saying that a S-Class hero can't go this far against a simple punk. After Tanktop Master approved, Garou showed his true skills and with a powerful counterattack, he defeated Tanktop Master. After that, Mumen Rider and the Tanktop Fighters tried to fight him, only to be quickly beaten. At the hospital, Mumen Rider was put in the same room as Tanktop Master and was visited by Saitama, and discussed about what Garou is to Saitama.

His original name, which literally translates to "Licenceless rider", and his look are a reference of the Kamen Rider franchise.

Tank-top Tiger

Voiced by: Hiromu Miyazaki (Japanese); Chris Tergliafera (English)

Tanktop Tiger (タンクトップタイガー, Tankutoppu Taigā) - Rank 6 is the lowest of all the hero brothers of the S-Class hero Tanktop Master, he's quite strong though, being capable of fighting with a tiger like style of combat, and, like the other brothers, he possesses an athletic body. He made his first appearance when Saitama encountered Sonic for the second time. Since Saitama rushed around town searching for bad guys for the purpose of maintaining his C-Class position, he was noticed by the civilians and found suspicious. Tanktop Tiger was called in order to stop him.

After the giant meteor was destroyed by Saitama, Tanktop Tiger and Tanktop Black Hole confronted Saitama in front of a crowd of people. They tried to attack Saitama only to be easily defeated by him.

D-Pad

Voiced by: Hiroki Gotō (Japanese); Kyle Hebert (English)

D-Pad (十字キー, Jūji-Kī) - Rank 25 is a capable hand-to-hand fighter, dressed with a costume modeled after a video game controller, that's probably the reason of his popularity among the children, according to his teammate Funeral Suspenders. He and his companion made the first appearance when they found the body of a monster that Saitama killed moments before. While they were isolating the corpse to maintain the civilians away, they were spotted by some passers and took credit for the monster's death. Later that day, D-Pad and Funeral Suspenders tried to thwart a bank robbery being perpetrated by the A-Class criminal Bull-Bull.

Battery Man

Voiced by: Hiromichi Tezuka (Japanese); Doug Erholtz (English)

Battery Man (電池マン, Denchi Man) - Rank 85 is a young hero suited with a strange mechanical armor which covers most of his body. He decided to intervene to the case of the rumored monster in Z-City after the creature defeated Golden Ball and Spring Mustachio, but he came to the scene after it was already beaten by Saitama.

Armored Section Head

Armored Chief Clerk (アーマード係長, Āmādo Kakarichō) - Rank 111 is a middle-aged bespectacled chief clerk, dressed like a normal employee and has his arms and legs covered with a strange type of mechanical armour. He was seen most of the time with other C-Class heroes, presumably because he prefers to combine strength against emergencies, rather than fight them alone. During the Surprise-Attack Plum side story, he was one of the many heroes which tried to attack the monster that was devastating a police station in order to get a lot of credits, since it was an important emergency. However, he arrives at the scene when Saitama has already killed the monster. During Tatsumaki's Day Off side story, he tried to stop the disaster level "Wolf" Hotdog monster, but before he could start the battle, Tatsumaki arrived and obliterated the monster in a moment, leaving Armored Chief Clerk speechless.

Funeral Suspenders

Voiced by: Shinya Hamazoe (Japanese); Lex Lang (English)

Funeral Suspenders (喪服サスペンダー, Mofuku Sasupendā) - Rank 44 is a man with glasses, a black smoking and a pair of white suspenders that gives him his name, fighting the crime in couple with D-Pad. He's a capable hand-to-hand fighter, as well as his partner. He and his companion made the first appearance when they found the body of a monster that Saitama killed moments before; while they were isolating the corpse to maintain the civilians away, they were spotted by some passers and took credit for the monster's death. Later that day, D-Pad and Funeral Suspenders tried to thwart a bank robbery being perpetrated by the A-Class criminal Bull-Bull. After successfully defeating several of his henchmen, both heroes were defeated simultaneously and with ease by Bull-Bull. During the Surprise-Attack Plum side story, he was one of the many heroes which tried to attack the monster that was devastating a police station in order to get a lot of credits, since it was an important emergency. However, he arrives at the scene when Saitama has already killed the monster.

Gasmask Cowboy

Voiced by: Ryōta Yano

Gasmask Cowboy (ガスマスクカウボーイ, Gasumasuku Kaubōi) - Rank 141 is a strange hero which appears like a cowboy with a gas mask on the face, carrying a lariat with him, probably his primary arm. He was seen most of the time with other C-Class heroes, presumably because he prefers to combine strength against emergencies, rather than fight them alone. During the Surprise-Attack Plum side story, he was one of the many heroes which tried to attack the monster that was devastating a police station in order to get a lot of credits, since it was an important emergency. However, he arrives at the scene when Saitama has already killed the monster. During a side story, Gasmask Cowboy participated in the first Hero Costume Contest.

Horsebone

Horse-Bone (ウマボーン, Uma-Bōn) - Rank 283 is a hero with a strange look, he seems to wear some type of horse head and hooves with a business suit. He was sent to investigate mysterious beings activities in H-City along with the B-Class hero Mushroom.

Bunbun Man

Voiced by: Zeno Robinson

Bunbun Man (ブンブンマン, Bunbun Man) - Rank 331 is a man with an afro haircut and wearing a long sleeve shirt that has the kanji for "Fist" written on. He is known to have average combat abilities, but not enough to make him a strong fighter. He takes his job quite seriously, since he decided to face the Sea King in a shelter, in order to protect the civilians in there, even if he was alone with minor heroes; he was quickly defeated, but he bought enough time to let Genos enter the scene and, with his intervention, he saved many lives.

Hyottoko

Hyottoko (ひょっとこ, Hyottoko) - Rank 347 is one of many C-Classes dressed with a funny costume; his outfit looks like that of the typical Japanese thief and he also wears a mask resembling a strange face with only his eyes uncovered. He was seen most of the time with other C-Class heroes, presumably because he prefers to combine strength against emergencies, rather than fight them alone. During Garou's "hero hunt", Red Nose claimed to Studless and Hyottoko that they could defeat Garou if they attack him together just because he's still simply a human. When Red Nose was about to show off his own martial arts skills to them, Garou himself appeared behind him and mercilessly beat up all of them.

Allback-man

Voiced by: Hiromichi Tezuka (Japanese); Bill Rogers (English)

All Back-Man (オールバックマン, Ōrubakku Man) - Rank not disclosed wears a costume that resembles the uniform worn by NASCAR racers, with the words "All-Back Man" on his back. He appears to be an average fighter, maybe with military training, since he asserted that he's one of the strongest C-Class heroes; it's presumed that he may have a high rank. He takes his job quite seriously, since he decided to face the Sea King in a shelter, in order to protect the civilians in there, even if he was alone with minor heroes; he was quickly defeated, but he bought enough time to let Genos enter the scene and, with his intervention, he saved many lives. Following the Sea King incident, All Back-Man resigned from the Hero Association.

His name is a reference to his hairstyle, where all his hair is slicked back.

Undetermined class superheroes

The following superheroes don't have their classes known:

Pandaman

is a superhero in a giant panda costume.

Tanktop Al Dente

Tanktop Al Dente (タンクトップアルデンテ, Tankutoppu Arudente) is a member of the Tank Topper Army who sports short hair and wears a tanktop. He is known to eat pasta for breakfast and uses too much cheese on it.

Tanktop Girl

Tanktop Girl (タンクトップガール, Tankutoppu Gāru) is an average girl that wears a tanktop and torn jeans who is a member of the Tank Topper Army where she respects Tanktop Master.

Tanktop Hatter

Tanktop Hatter (タンクトップハッター, Tankutoppu Hattā) is a hat-wearing muscular man and member of the Tank Topper Army that wears a tanktop and neck-length hair.

Tanktop Jungle

Tanktop Jungle (タンクトップジャングル, Tanktop Jungle) is a hairy muscular man and member of the Tank Topper Army that wears a tanktop.

Tanktop Mask

Tanktop Mask (タンクトップマスク, Tankutoppu Masuku) is a muscular member of the Tank Topper Army who wears a tanktop. He gets his name from the child-sized tanktop that he wears as a mask.

Tanktop Racer

Tanktop Racer (タンクトップレーサー, Tankutoppu Rēsā) is a muscular member of the Tank Topper Army who wears a tanktop and a racer helmet.

Tanktop Rockabilly

Tanktop Rockabilly (タンクトップロカビリー, Tankutoppu Rokabirī) is a muscular rockabilly-themed member of the Tank Topper Army who wears a tanktop. He is a part-time guitarist where even his guitar is tanktop-shaped.

Tanktop Swimmer

Tanktop Swimmer (タンクトップスイマー, Tankutoppu Suimā) is a muscular member of the Tank Topper Army who wears a tanktop and swimming goggles.

Hero Association Staff and various members

Agoni

Agoni (アゴーニ, Agōni) is an old man dresses in a formal business suit, characterized by his enormous cleft chin. He lives in A-City and founded the Hero Association three years before the show began. Agoni came up with this idea when his big-chinned grandson was attacked by Crabrante and his life was saved by a bypassing stranger (which was Saitama). Agoni was so moved by this he created the Hero Association and the National Superhero Registry to create and manage superheroes who would protect humanity against supervillains, monsters, and other threats to the world.

Sitch

Voiced by: Nobuo Tobita (Japanese); Kirk Thornton (English)

Sitch (シッチ, Shicchi) is a middle-aged short man dressed with a dark smoking hair. He's the Minister Officer of Justice for the Hero Association. Sitch is first seen in the Rumored Monster arc, discussing with other Hero Association members about the investigations being perpetrated by heroes in the various cities, in order to prevent eventual monsters activity. During the S-Class meeting, Sitch was sent by the Hero Association to inform the S-Classes about the final prophecy of Madame Shibabawa, which predicted a disaster level "God" threat that will cause the destruction of whole humanity in the next six months.

Guiches

Guiches (ギーシュ, Gīshu) is the serious and stern chief of Z-City's Hero Association branch who is also incompetent and arrogant. During Scaledon's escape from Metal Knight's special confinement cell, Guiches sent various B-Class superheroes to contain the monster while making up how Scaledon's blood and body are needed for pharmaceutical values. He event went as far as to keeping his secretary from calling Hero Association HQ. After Scaledone was defeated, Metal Knight had Guiches laid off until the heat was down.

McCoy

McCoy (マッコイ, Makkoi) is a muscular and bespectacled man with an eyepatch over his right eye who is the operations chief of Z-City's Hero Association branch.

Muffintop

Muffintop (ゼイミート, Zeimīto) has the appearance of a small fat man, dressed in elegant clothes. He is an unspecified officer of the Hero Association. During Garou's "hero hunt", he is shown walking down the sidewalk of the entertainment district with two women; while acting snooty and full of himself with them, Garou showed up behind him and knocked him out with a punch, being quite irritated from his attitude.

Narinki

Narinki (ナリンキ, Narikin) is a short man with a big nose and large lips who is a high-ranking executive of the Hero Association. He has a son named Waganma who also has his traits.

Bearded Worker

Voiced by: Shouta Yamamoto (Japanese); Marc Diraison (English)

A currently unnamed bearded man who works at the Hero Association. He is paired up with a bespectacled worker where they investigated the activities of Genos.

Bespectacled Worker

Voiced by: Yōji Ueda (Japanese); Kyle Hebert (English)

A currently unnamed glasses-wearing man who works at the Hero Association. He is paired up with a bearded worker where they investigated the activities of Genos.

Executive Girl

Voiced by: Michelle Deco

A currently unnamed female executive with a suave look that works at the Hero Association. She was first seen in the "Rumored Monster" arc where she mentions that the Hero Association took a lot of heat when Marugori attacked B-City and D-City.

Villains

Criminals

There are lots of various criminals in the One-Punch Man universe. Like the heroes of the Hero Association, they are classified with a class ranking (from C to S).

Men's Esthetician Man

Voiced by: Hiromichi Tezuka

Exclusive to the first OVA, Men's Esthetician Man (メンズエステマン, Menzuesuteman) - Class B criminal is a very tall and lean criminal that fought Saitama twice. The first time was when he previously stalked Saitama. The second time was when Genos stole Saitama's French Fry and was punched through a building by Saitama presumed he was the thief.

Don Pacino

Voiced by: Yōji Ueda

Exclusive to the second OVA, Template:Hnhinogo is a crime lord who is the leader of the Pacino Family. He and his men take a man hostage and steal the keys that Genos got from Saitama. Don Pacino and his men were defeated by Saitama.

The Brain and Brawn Brothers

Fukegao Voiced by: Takuma Suzuki (Japanese); Kirk Thornton (English)

Marugori Voiced by: Shinya Hamazoe (Japanese); Bryce Papenbrook (English)

The Brain and Brawn Brothers (天才と筋肉兄弟, Tensai to Kinniku Kyōdai) - Estimated disaster level: "Demon" were a self-proclaimed team of the genius older brother, Fukegao (フケガオ, Fukegao), and the muscular younger brother, Marugori (マルゴリ, Marugori). When Fukegao finally invented the Biceps Brachii King steroid drug, his brother, that was dreaming of becoming the most powerful man on Earth, ingested it and transformed into a mutated 27,000-centimeter (890 ft) giant that towers over the tallest buildings. Together, they tested the new effective strength of Marugori, which destroyed an entire city with ease; they planned then to take over the world combining the most powerful mind and body, but were intercepted by Saitama. While trying to smash Saitama, Marugori accidentally killed his beloved brother Fukegao and, tremendously furious, he vented his anger against Saitama, blaming for his brother's death and then he hit him with various blows, making a huge crater in the ground. He mourns for Fukegao after seemingly having defeated Saitama with one of his punches, saying that he feels empty. However, Saitama emerged without a scratch from the chasm and, after reaching his face with a huge jump, he strongly punched Marugori's head with a single punch, killing and sending him crashing to the B-City, destroying it. Marugori is effectively a parody of the Colossal Titan from the Attack on Titan anime series, his English voice actor playing the series lead.

Hammerhead

Voiced by: Wataru Takagi (Japanese); Edward Bosco (English)

Hammerhead (ハンマーヘッド, Hanmāheddo) - Class B criminal is the former leader of the "Paradisers" (桃源団, Tōgen-dan), in the original webcomic "New Metropolis Group" (新都団, Shinto-dan), a terrorist group proclaiming that the actual society is corrupted and "while rich people grow fat, poor people are obligated to work", so they are trying to create an utopia in which work is voluntary and the unemployed receive full financial support (Hammerhead doesn't truly trust this cause, he simply doesn't want to work), while destroying every symbol of richness. He is a tall, muscular man with a thick skull and horizontal scar across his nose.

He first appears where the Paradisers were causing havoc and even beat up Mumen Rider. His men were all killed by Zeniru's bodyguardSpeed-o'-Sound Silence while his armor was destroyed by Saitama who sends Hammerhead running. The Organization later defeated him for stealing the data used to make the Paradisers' armors, though he survived thanks to his thick skull.

Hammerhead was later seen applying for a job at the time when the Dark Matter Thieves attack.

Big Iron

Big Iron (ビッグアイアン, Biggu Aian) - Class A criminal is the leader of the "Iron Fist" (アイアンフィスト, Aian Fisuto), the biggest criminal gang that was operating in N-City. He's a muscular tall man with great physical strength which uses, as all his underlings, iron gauntlets to fight and he is a known A-Class criminal. They tricked the A-Class hero Feather, making him believe they got an hostage so the hero was forced to face them all alone and was severely beaten (he also had withheld for the hostage's sake). When Feather understood there was no hostage and was ready to fight back Big Iron himself, Tatsumaki and Saitama enter through the wall and beat Feather unconscious. Big Iron then, thinking they came to support the hero, recognized Tatsumaki and incited his men to take her down in order to become famous, attacking Saitama first since he was in his way. However, Saitama effortlessly knocked Big Iron out and Tatsumaki defeated the rest of the gang with ease, then she disappeared with Saitama, continuing their fight.

Speed-o'-Sound Sonic

Voiced by: Yūki Kaji (Japanese); Erik Scott Kimerer (English)

Speed-o'-Sound Sonic (音速のソニック, Onsoku no Sonikku) - Class S criminal is a ninja with feminine features and nearly unmatched speed who fights with various kind of weapons, he has declared himself Saitama's official rival and vows to defeat him. However, he cannot accept that Saitama's powers can easily surpass his every technique. Sonic has a huge ego and is obsessed with the idea of possessing the strongest fighting technique in the world: he fights strong opponents whenever he get a chance to prove that to himself, calling this his "bad habit". He is introduced as a killer-for-hire who occasionally worked for Zeniru, a famous rich man, and faced the Paradisers on behalf of Zeniru, which was the target of the army. Throughout the webcomics, manga remake, and anime he has challenged and lost to Saitama at least 5 times.

Banero

Banero (バネロ, Banero) - Class C criminal is a serial arsonist in a hooded sweatshirt that uses molotv cocktails in his acts of arson. He was defeated by the Fubuki Group.

Bull-Bull

Bull-Bull (ブルブル, Buruburu) - Class A criminal is a large man in a cattle-pattered hoodie that has horns and goggles on it. He is the super-strong leader of the Cow's Stomach gang and is first seen where he leads his gang into robbing a bank. While D-Pad and Funeral Suspenders defeated the Cow's Stomach Gang, they were defeated by Bull-Bull. They take a child hostage and make their getaway only for them to be defeated by Saitama.

Garou

Also known as the "human monster", Garou (ガロウ, Garō) - Estimated disaster level: more than "Demon" (at the beginning); more than "Dragon" (at his final battle) Garou alongside Boros is the most powerful antagonist in the series thus far (it's stated that them both were about almost equivalent strength by ONE on his Twitter stream, and that Garou could have possibly been the one mentioned in Shibabawa's prophecy about Earth's fate). He used to be the best disciple of the S-Class rank 3 hero Silver Fang, but he was expelled by his master for mercilessly beating up the other disciples. This resulted in Bang losing almost all of his students (except for Charanko).

As a child, Garou was often bullied by other kids. He was made to play a villain and was often beaten up by the bully who used to pretend to be a superhero. Slowly, Garou began to despise heroes and support villains and was upset when the villain always ended up losing. Hence, he wanted to be a villain who could defeat all heroes and win in the end. Despite his evil persona Garou had a high sense of honor too.

Many years later, under Bang's tutelage, Garou became a master of the martial art Water Stream Rock Smashing Fist and was considered the best student Bang ever had. Four months prior to Saitama joining the Hero Association, Garou realized there was nothing left to learn from Bang and trashed his fellow classmates. After misusing his abilities, Garou was expelled from the dojo. Since then, Garou began to train in several martial arts on his own, so that he would be strong enough to singlehandedly take down the entire Hero Association.

Garou is a prodigy in martial arts, capable of learning various fighting styles just by observing people fight once. He is skilled in identifying and exploiting his opponent's fighting weaknesses and develop countermeasures against for his opponents' fighting styles. He can even incorporate all elements of the martial arts he has learnt into one single deadly martial art. In addition to this, Garou possesses peak physical abilities which surpass many A Class heroes and even many S Class heroes. He only becomes stronger and more powerful with every fight and was dreaded by many heroes as the Hero Hunter. He slowly evolves into a monster with increased physical attributes and regeneration (albeit at the cost of his skill). In one of his rudimentary monster forms, he was faster than the speed of light. He and Saitama are the only beings faster than the hero Flashy Flash who is fast as the speed of light. Before turning into a monster, Garou was actually defeated many times. He nearly lost to Metal Bat; he was defeated by Watchdog Man. He was defeated by his own master Bang and Bang's elder brother Bomb. He was defeated by three demon class monsters and by Psykos. Saitama himself (unintentionally and unkowingly) defeated Garou on three occasions, before their final showdown after Garou's transformation.

Garou defeated nine of the seventeen S Class heroes. Puri Puri Prisoner, Genos, Tanktop Master, Flashy Flash, Superalloy Dark-shine, Pig God, Zombie-man, Child Emperor and Atomic Samurai, these S Class heroes were all physically incapacitated after fighting Garou. Top A Class heroes like Magic Trick Man, Blue Fire, Heavy Tank Fundoshi, Death Gatling, Golden Ball and Spring Mustachio were also defeated by Garou. Even the entire Tanktop Army led by Tanktop Master was no match for Garou. The monster Black Sperm, who had defeated Atomic Samurai was beaten by Garou. Garou also defeated Amai Mask, Fubuki and Mumen Rider who all held No.1 positions in A Class, B Class and C Class respectively.

Garou was savoring his victory over the heroes when he was confronted by Saitama. The two antagonists fought each other and Garou was shocked at Saitama's deceptive strength. Although Garou possessed excellent technique, he admitted that Saitama was far superior to him in terms of strength, power, reflexes, speed and sight. Garou is the only antagonist to survive the most number of hits from Saitama and was relatively unhurt (although Saitama may have been holding back because in his view, Garou was still a human). Saitama had to even use two handed normal punches and two Serious moves on Garou. The latter was even able to counter and dodge some of Saitama's attacks, albeit temporarily. He kept transforming into more monstrous forms as the fight progressed. However, Garou began to lose morale against Saitama and lost control of his form, gradually reverting to human.

Saitama proved to be more than a match for Garou. After being overwhelmed by Saitama's prowess, Garou began to panic. Saitama deconstructed Garou's psyche by asking him simple questions and went on to expose the errors in it, stating that Garou actually intended to be a hero in the first place. Saitama also told Garou the reason why he lost, essentially breaking Garou's morale. Saitama even pointed out that Garou never actually killed any hero nor did he attack the public.

Although other heroes demanded Saitama to execute Garou then and there, Saitama refused. In the end, Garou was able to escape, with only Saitama seeing him. After Garou's defeat, many heroes felt humiliated for being unable to stop his rampage. The Hero Association faced lot of flak from the public for being unable to handle the Garou crisis properly and many scams came under scrutiny.

Mysterious Beings

The Mysterious Beings (怪人, Kaijin) (also known as Monsters) is a name given to sentient beings that terrorize the cities and pose a threat to society. There are lots of Mysterious Beings where each of them born for a special situation.

They are classified basing on the threat level they would cause. They are listed in crescent order:

• Wolf-Level Mysterious Beings are monsters who are potential threats or threats that pose a danger at an unknown degree. It requires one B-Class Superhero or 10 C-Class Superheroes to fight it.

• Tiger-Level Mysterious Beings are monsters who pose a threat to a large number of people. It requires 1 A-Class Superhero or 10 B-Class Superheroes to fight it.

• Demon-Level Mysterious Beings are monsters who pose a threat to a city and its people. It requires 1 S-Class Superhero or 10 A-Class Superheroes to fight it.

• Dragon-Level Mysterious Beings are monsters who pose a threat to a lot of cities.

• God-Level Mysterious Beings are monsters who pose a threat to all of humanity.

Crablanté

Voiced by: Yukitoshi Tokumoto

Crablanté (カニランテ, Kanirante) - Estimated disaster level: "Tiger" is a huge mutant monster resembling a humanoid crab from the waist up and a human from the waist down. He possesses enhance physical strength, capable of killing people and smashing the ground with ease, using his giant claws as a weapon. According to him, he transformed into Crablanté because he ate too many crabs. He appears three years before the current events, when Saitama was still a normal person and causing him to start his career as a hero, after he killed Crablanté in a harsh battle in order to save an innocent big-chinned child, who was the grandson of Agoni, the founder of the Hero Association. Crablanté is the very first monster to have been killed by Saitama.

170,000-Year Magicicada Nymph

The 170,000-Year Magicicada Nymph (17万年ゼミ幼虫, 17 Man-nen Zemi Yōchū) -Estimated disaster level: "Demon" is a massive cicada who attacked Z-City during Saitama's early training days. It defeated Grad School Graduate, Red Muffler, Darkness Blade, and two unnamed A-Class heroes before being killed by Saitama.

Vaccine Man

Voiced by: Ryusei Nakao (Japanese); Christopher R. Sabat (English)

Vaccine Man (ワクチンマン, Wakuchin Man) - Estimated disaster level: "Dragon" is a humanoid monster with purple skin and an athletic body. He's very dangerous, since he got incredibly great physical capability, the ability to fly and fire massive energy attacks from his body. Vaccine Man can infect the nearby area with a sort of virus, which paralyzes all the victims that inhale it, and can also transform himself to increase his already high power even more. He was the first enemy faced by Saitama in the series. In the anime, he effortlessly defeated Smile Man and Lighting Max who were sent to stop him. According to him, he is Mother Earth's apostle and was born due to the massive pollution released across the Earth by human beings and his mission is to eradicate humanity from the world, since it has become "nothing more than a virus". He started bringing huge destruction in Z-City until Saitama stood against him; in the moment when he transformed to blow Saitama away, he was killed with one single punch by the hero. Vaccine Man's normal form bears a strong resemblance to the character Piccolo from the series Dragon Ball and Baikinman from Anpanman, going so far as to have Frieza and Baikinman's Japanese voice actor Ryūsei Nakao and Piccolo's voice actor Christopher R. Sabat in the FUNimation dub. His transformation resembles the appearance of the titular character from the Diablo series, more specifically the version from the game Diablo II.

Super Custom YO649Z Mk. II

Voiced by: Hiroki Gotō (Japanese); Ben Diskin (English)

Super Custom YO649Z Mk. II (バリカスタムよ649ZマークⅡ, Bari Kasutamu Yoroshiku Zetto Māku Tsū) - Estimated disaster level: "Unknown" is an anime-exclusive custom car monster with super-strength enough to destroy cars with his bare hands. After Saitama defeated the Brain and Brawn Brothers, he encounter Super Custom YO649Z Mk. II who was doing some looting. He attempts to intimidate Saitama only to be killed by him.

Subterranean People

The Subterranean People (地底人, Chitei-jin) are a race of underground creatures. They are led by the Subterranean King. When Saitama killed the Subterranean King, the Subterranean People retreated back underground.

Subterranean King

Voiced by: Yōji Ueda (Japanese); Kirk Thornton (English)

The Subterranean King (地底王, Chiteiō) - Estimated disaster level: "Demon" is the leader of the Subterranean People and looks like some sort of dark, big armored statue with four arms, each equipped with a flaming sword. In his first appearance, he seemed to be the first enemy Saitama encountered that could eventually take him down. It turned out to be just a dream. When the real Subterranean King appeared to conquer the surface, he was swiftly dispatched by Saitama with great disappointment for the hero as the Subterranean People retreated back underground.

Personification of a Light Pull Cord

Personification of a Light Pull Cord (電気のヒモの化身, Denki no Himo no Keshin) is a monster that is the result of a man shadowboxing a ceiling light pull cord. He causes some havoc punching different things on the street before being killed by Saitama.

Kombu Infinity

Voiced by: Ami Naitō (Japanese); Tara Sands (English)

Kombu Infinity (昆布インフィニティ, Kombu Infiniti) - Estimated disaster level: more than "Tiger" is a kombu (Japanese for seaweed) monster who manipulates its kombu tentacles to become taut and dangerous, Kombu Infinity travels to Z-City, with the prospect of becoming a notorious monster in mind. It easily defeats A-Class heroes Golden Ball and Spring Mustachio before attempting to attack (and getting killed) by Saitama, who randomly encounters it after a grocery shopping trip. Kombu Infinity's tentacles later end up as prime ingredients in Kombu stew later on in Saitama's home.

Seafolk

The Seafolk (海人族（漫画）; もしくは深海族（アニメ）, Kaijin-zoku (Manga); Shinkai-zoku (Anime)) are a race of humanoid sea creatures that live in the oceans and are led by the Deep Sea King. Some of the Seafolk accompanied the Deep Sea King into invading the surface where most of them were killed by Stinger.

Deep Sea King

Voiced by: Rikiya Koyama (Japanese); Keith Silverstein (English)

The Deep Sea King (深海王, Shinkaiō) - Estimated disaster level: more than "Demon" is the self-proclaimed leader of the Seafolk (海人族（漫画）; もしくは深海族（アニメ）, Kaijin-zoku (Manga); Shinkai-zoku (Anime)) who is a large, muscular piscine humanoid adorned with a crown and a royal cape. He possesses destructive power, speed and skill in combat, as well as the ability to regenerate wounds, project corrosive spit and unleash a moray tongue, which can grasp or bite his foes. As a seafolk, The Deep Sea King grows in strength when hydrated (as shown when he exposed himself to the rain), which causes his size and form to rapidly increase. A self-proclaimed ruler, he refuses to let humans escape him, and ultimately desires to rule the surface. After having one of his fellow seafolk killed by Saitama, who happens to pass by, and the rest by the A-class hero Stinger, he decides to take on an entire evacuation center filled with frightened civilians and a handful of B-class and A-class heroes, but not before nearly killing Stinger, Lightning Max, and Puri-Puri Prisoner with relative ease, even in his dehydrated form. Once hydrated in the rain, however, The Deep Sea King was even able to catch Speed O' Sound Sonic (who escaped from prison with Puri-puri) by surprise with his increased abilities; the latter escaped him, being unable to defeat the empowered monster without weapons. Having penetrated the evacuation center, and threatening to capture and eat everyone even after he defeated All Back-Man, Bunbunman, Jet Nice Guy, and Snek. The Deep Sea King is intercepted by Genos while in dehydrated form, taking all of the latter's attacks with minimal damage (and even resisting an Incinerate attack) and nearly killing Genos with his corrosive spit, coupled with blasting him through the evacuation center's wall. He is later faced by Mumen Rider, who attempts to buy some time and face him head on despite the latter's apparent uselessness against the Deep Sea King's strength. In the end, Mumen Rider falls unconscious due to his fatigue and injuries, though succeeds in stalling enough for Saitama to arrive and kill the Deep Sea King with one punch with the air pressure of which stops the rain entirely.

Lord Great White

is a great white shark-type Seafolk who appeared at K-City's Nature Park. He killed the King of the Lake and tried to become the new Deep Sea King only for him to be slain by Saitama.

Ancient King

Voiced by: Taylor Henry

Exclusive to the anime, the Ancient King (古代王, Kodaiō) - Estimated disaster level: unknown is a colossal, nearly-humanoid reptilian leader of the Terror Lizard Clan. Awakening from his 300,000,000 year slumber, the Ancient King decides to take advantages of the deaths of the Subterranean King and the Deep Sea King. The Ancient King did a number on the military before being slain by Tornado of Terror.

Skyfolk

The Skyfolk (天上人, Tenjōjin) are a race of humanoid bird-like tengus.

Sky King

Voiced by: Christopher Corey Smith

Sky King (天空王, Tenkūō) - Estimated disaster level: unknown is the red-skinned leader of the Skyfolk wearing a little crown. He possesses the ability to fire powerful energy beams from the mouth and is quite strong, since he asserted to be the strongest creature in the skies. His goal was to destroy the Heroes Association and seize the opportunity to take over the world after the defeat of his rivals, the Deep Sea King and the Underground King. While the Sky King was flying with a bunch of subjects to the Association headquarter in A-City, in order to attempt his conquer purpose, they randomly met Melzalgald and were instantaneously killed by the alien just because he didn't know what they were and they were in his way. Since the other two Kings were a "Demon" level threat, it's presumably that the Sky King could be a disaster level "Demon" too.

Eagle

Eagle (イーグル, Īguru) is a tan-skinned member of the Skyfolk. He is killed by Melzalgald.

Hawk

Hawk (ホーク, Hōku) is a blue-skinned member of the Skyfolk. He is killed by Melzalgald.

Falcon

Falcon (ファルコン, Farukon) is a turquoise-skinned member of the Skyfolk. He is killed by Melzalgald.

Kite

Kite (カイト, Kaito) is a black-skinned member of the Skyfolk with black bat wings. He is killed by Melzalgald.

Pluton: King of the Underworld

Voiced by: Lex Lang

Pluton: King of the Underworld (冥界王プル豚, Mēkaiō Puruton) - Estimated disaster level: "Dragon" is a gigantic pig-like creature who is the ruler of the unnamed planet's Underworld and is primarily featured in the manga, but makes an appearance during the end credit scene of the anime. Following the invasion of the Dark Matter Thieves and upon being awoken by the pollution, Pluton attacked Y-City where he leveled some buildings. Before Pluton can step on a child, Genos saved the child. As Genos introduced himself to Pluton, it was a diversion enough for Saitama to destroy Pluton. Though Saitama was disappointed that it was another one-punch defeat.

Tongue Stretcher

Tongue Stretcher (シタノビール, Shitanobīru) - Estimated disaster level: "Wolf" is a chameleon-like mutant that was once a man with an intense love for reptiles and turned into a monster for that. He possesses the ability to project his long tongue at great speed and decent physical strength, since five adult men couldn't hold him back. He is a pervert that attacked some young, beautiful women in M-City, but King casually walked in his way and scared him that much that he instantaneously surrendered, even though the S-Class hero did nothing. Once in prison, he boasted to other monsters that he was captured by the strongest man on Earth and survived the fight against him, becoming highly popular. He was then brought to the Hero Association new headquarter's prison for monsters and there he stayed until the wall of his prison was smashed because of the fight between Fubuki and Tatsumaki. He then escaped together with Pot Belly and Man-eating Capibara, planning with them to go on a rampage all over the place, but moments later they were caught in the middle of the fight between the two esper sisters and Tongue Stretcher was totally shredded in an instant by Fubuki's attack.

G4

G4 (G4, Gī Fō) - Estimated disaster level: "Demon" is a very large and chunky humanoid robot, created by a mysterious secret organization called "The Organization" (組織, Soshiki); its gear is lavishly decorated with shiny ornaments and plating and it wears a royal fur cape and a crown. It's equipped with a huge sword and it got immense destructive capabilities. He was sent to M-City for the purpose of fight King and collect data about his battle capability. After G4 found him, the robot learned of King's inability to fight at full potential with a full bladder and the machine agreed on the suggestion to let him use a toilet first, but if he doesn't return within ten minutes, ten people will be killed every minute delay. However, that was just a ploy since the real intention of King was that to escape the danger and so, when the time came, G4 started to bring destruction to the city; luckily Genos and Saitama arrived by case and the cyborg started to face G4. After a long fight, Genos finally managed to destroy the giant robot but its armor fell away to reveal instead a smaller robot, the true form of G4, who resumed its fight against the cyborg. It is afterwards revealed that Genos had defeated and shut down G4 and had brought G4's parts to Dr. Kuseno in order to improve his arsenal. In the original webcomic, his name was "The God Machine" Zsimov (機神ヅシモフ, Kishin Zushimofu).

Octopus Claw Man

Octopus Claw Man (タコ爪マン, Tako Tsume Man) - Estimated disaster level: "Tiger" is a huge octopus-like monster with a human face and claws on his tentacles, possessing enhanced physical strength and using his razor sharp claws to fight. He appears during a flashback, attacking King when he was still an unknown guy and giving him his typical scars. Before he could kill King, Saitama arrived and killed the monster with a single blow, saving him from the monster.

Giant Crow

Giant Crow (巨大黒烏, Kyodai Kurou) - Estimated disaster level: "Demon" was a creature resembling a giant and monstrous crow, with immense force and being about as large as a tennis court. It was sighted flying above M-City and caused an emergency evacuation. It crashed into King's apartment, but luckily Saitama was there, because he followed King to his house, and killed the Giant Crow with ease. The Giant Crow was seen earlier in the intro of the anime.

Suppon

Suppon (原始人スッポン, Genshijin Suppon) - Estimated disaster level: unknown is a large and muscular caveman with great physical capability that was revived from ice and escaped from the lab he was kept on. After attacking a few civilians, Suppon encountered Amai Mask, which stated that the Hero Association would like Suppon be taken back alive, but he has different plans. Then, Suppon proceeded to charge at Amai Mask and attacked him, but the hero dodged the attack with ease and killed Suppon in no time.

Pot Bellee

Pot Bellee (ビールッパラー, Bīrupparā) - Estimated disaster level: "Wolf" is a fatty monster with a vertical mouth and a pockmarked skin, he was kept lock in the Hero Association new headquarter's prison for monsters until the wall of his prison was smashed because of the fight between Fubuki and Tatsumaki. He then escaped together with Tongue Stretcher and Man-eating Capibara, planning with them to go on a rampage all over the place, but moments later they were caught in the middle of the fight between the two esper sisters and Pot Belly was totally shredded in an instant by Fubuki's attack.

Man-Eating Capybara

Man-eating Capybara (人喰いカピバラ, Hito-kui Kapibara) - Estimated disaster level: "Tiger" is a monster resembling some sort of "were-capybara", it was kept lock in the Hero Association new headquarter's prison for monsters until the wall of its prison was smashed because of the fight between Fubuki and Tatsumaki. It then escaped together with Tongue Stretcher and Pot Belly, planning with them to go on a rampage all over the place, but moments later they were caught in the middle of the fight between the two esper sisters and Man-Eating Capibara was totally shredded in an instant by Fubuki's attack.

Twin-Headed Tsuchinoko

Twin-headed Tsuchinoko (双頭ツチノコ, Sōtō Tsuchinoko) - Estimated disaster level: "Demon" is a horrible creature with the look of a giant two-headed worm with huge mouths and sharp teeth, it was kept lock in the Hero Association new headquarter's prison for monsters until the fight between Fubuki and Tatsumaki weakened its jail and it was able to escape. After its run, Tsuchinoko found Saitama on the way, since he was present at the scene, and tried to eat him, but the hero blocked its attack and killed the monster with a single move, sending it back to its prison downstairs.

Needlepoint Mouse

Needlepoint Mouse (ケンザンネズミ, Kenzan Nezumi) - Estimated disaster level: "Dragon" is an immense and monstrous porcupine-like creature greatly powerful that was destroying H-City by itself. Metal Bat was the only hero that responded to the emergency call to stop the monster (he even skipped his beloved cat's birth to arrive in time). However, the monster was in Tatsumaki's way during her fight against Saitama and was instantaneously killed by her, which greatly disappointed Metal Bat, who came for nothing.

House of Evolution

The House of Evolution (進化の家, Shinka no Ie) is an organization created to further human evolution and take over the world. Zombieman was one of this organization's experiments.

Doctor Genus

Voiced by: Daisuke Namikawa (Japanese); Ray Chase (English)

The head and founder of the House of Evolution, Doctor Genus (ジーナス博士, Jīnasu-hakase) is a brilliant scientist who became mad because he was too intelligent in young age and ended up finding other human beings unworthy and still primitive, so he decided to found the House of Evolution to "bring true humanity and evolution in the world". In order to ensure his constant survival, Doctor Genus had discovered the secret of eternal youth through science and created over 70 clones of himself for emergency purposes. After Carnage Kabuto was killed, Doctor Genus was planning to start a takoyaki shop with Armored Gorilla.

One of Dr Genus's creations, Zombieman is an S Class hero. The latter tries to kill Genus. However Genus tells Zombieman that after watching Saitama slay Carnage Kabuto, he decided to shut down the House of Evolution and give up evil. Genus found his actions comical so he decided to open a restaurant.

Genus comes up with the Limiter theory to explain Saitama's source of strength and asks Zombieman to meet him. After the fight with Garou, Zombieman asks Genus to remove his limiter to acquire power like Saitama.

Mosquito Girl

Voiced by: Miyuki Sawashiro (Japanese); Cristina Vee (English)

Mosquito Girl (モスキート娘, Mosukīto Musume) - Estimated disaster level: "Demon" was Doctor Genus' prototype, an insectoid girl which resembles a mosquito with superhuman capability. Able to telepathically communicate with mosquitoes and have them draw blood from creatures up to 50 km away. When she absorbs enough blood she transforms, gaining even more incredible speed and strength. Mosquito Girl is the first enemy faced by Genos. She was draining blood from population and livestock in Z-City, causing lots of deaths, and started a hard battle with Genos, who tried to stop her. After her transformation, Genos let his guard down and was shattered by the mutant. Before she could kill the cyborg, Saitama effortlessly intervened and slapped Mosquito Girl away, killing her.

Manty

Voiced by: Yoshiaki Hasegawa (Japanese); Kyle Hebert (English)

Manty (カマキュリー, Kamakyurī) - Estimated disaster level: more than "Tiger" is a rather huge mutant resembling a mantis. He was sent by the House of Evolution with other mutants to Saitama's house to capture the hero and bring him to their headquarter as a specimen, and tried to take him by surprise, entering through the roof. Even if he was one of the strongest fighters of the organization (according to Frog Man), Saitama punched his head off in an instant for breaking his ceiling.

Slugerous

Voiced by: Kenta Sasa (Japanese); Chris Cason (English)

Slugerous (ナメクジャラス, Namekujarasu) - Estimated disaster level: "Wolf" is a small dumpy looking slug mutant. He has telepathic abilities, but is still a quite weak mutant. He was sent by the House of Evolution with other mutants to Saitama's house to bring the hero to their headquarter as a specimen; after Saitama defeated him with ease, he was slaughtered by the fury of the Beast King's attacks against Saitama.

Frog Man

Voiced by: Hiroki Gotō (Japanese); Kirk Thornton (English)

Frog Man (カエル男, Kaeru Otoko) - Estimated disaster level: "Wolf" is an anthropomorphous frog mutant with a scar on his face, who wears a wide belt and black pants. He carries a tantō with him, so he's probably a swordsman, but in any case he's rather weak. He was sent by the House of Evolution with other mutants to Saitama's house to bring the hero to their headquarters as a specimen; after Saitama defeated him with ease, he was slaughtered by the fury of the Beast King's attacks against Saitama.

Ground Dragon

Voiced by: Shinya Hamazoe (Japanese); Ben Diskin (English)

Ground Dragon (グランドドラゴン, Gurando Doragon) - Estimated disaster level: "Tiger" is a small mutant that looks like a mole, he was sent by the House of Evolution with other mutants to Saitama's house to bring the hero to their headquarter as a specimen. He's capable of digging fast and efficiently: with this ability he could even trap Saitama in the ground for a while. However, Saitama easily escaped and, after chasing him underground, he punched Ground Dragon through the ground into the sky.

He has the kanji words "ground dragon" (土竜, Mogura) which can also be read as "mole" written on the chest, that makes a play on words with his figure.

Armored Gorilla

Voiced by: Shōta Yamamoto (Japanese); Kaiji Tang (English)

The third most powerful creature of the House of Evolution, Armored Gorilla (アーマードゴリラ, Āmādo Gorira) - Estimated disaster level: "Demon" is a large gorilla cyborg-hybrid with large destructive capabilities. He was sent by the House of Evolution along with other mutants to capture Saitama and bring him to their base as a specimen. After facing a crippling defeat at the hands of Genos who defeated him with some effort and after he discovered that Beast King was killed by Saitama, Armored Gorilla surrendered and revealed information about the House of Evolution, so Genos decided to spare his life. Later on, he helped Doctor Genus transform the House of Evolution into a takoyaki restaurant. In the anime, he makes a short cameo together with Doctor Genus when the Dark Matter Thieves attacked A-City, watching the report on TV.

Beast King

Voiced by: Jirō Saitō (Japanese); George C. Cole (English)

The second most powerful creature of the House of Evolution, The Beast King (獣王, Jūō) - Estimated disaster level: "Demon" is a large, muscled, bipedal lion-mutant who wears fur suits and iron necklaces. He was sent by the House of Evolution along with other mutants to capture Saitama and bring him to their base as a specimen. The choice of English voice actor is a reference to the fact that George C. Cole voiced Leomon in Digimon, who is also a large, muscled, bipedal lion.

Carnage Kabuto

Voiced by: Unshou Ishizuka (Japanese); Mike McFarland (English)

The strongest fighter of the House of Evolution by far, Asura Rhino, real name: Carnage Kabuto (阿修羅カブト, Ashura Kabuto) - Estimated disaster level: "Dragon" is a massive beast resembling a humanoid rhinoceros beetle, he is dangerously powerful and smart, easily outclassing all of the other creations of Doctor Genus. Despite his level of intelligence, however, Asura Rhino had been deemed mentally unstable by Dr. Genus, and as such, remained chained and imprisoned within the House of Evolution's basement.

Dark Matter Thieves

The Dark Matter Thieves (暗黒盗賊団ダークマター, Ankoku Tōzoku-dan Dāku Matā) are a group of alien invaders led by the powerful Lord Boros, that attacks and raids various planets to find valid opponents.

Boros

Voiced by: Toshiyuki Morikawa (Japanese); Chris Jai Alex (English)

Boros (ボロス, Borosu) - Estimated disaster level: "Dragon+" is the leader of The Dark Matter Thieves and self-proclaimed subjugator of the universe. Aside from Garou, Boros is the most powerful antagonist in the series. Even Saitama had to use more than one punch to defeat Boros, even going as far as to use his most powerful attack, Serious Punch to slay the intergalactic conqueror. He is a large one-eyed humanoid with spiky hair which wears an armor and clothes resembling some Hindu deities. In the remake, he is shown wearing organic-looking armor along with pants similar to the type of clothes worn by characters in Dragon Ball Z, which was probably done so as a parody. Boros is also likely a parody of the Super Saiyan Goku himself, having his hair grow longer at every transformation. Saitama acknowledges Boros' strength and uses his Serious Punch to defeat the alien thereby making Boros the first opponent to make Saitama fight "seriously". Despite this, Boros claimed that Saitama was not even trying to fight seriously and that he was still holding back.

Melzalgald

Voiced by: Kōki Uchiyama (Japanese); Vic Mignogna (English)

Melzalgald (メルザルガルド, Meruzarugarudo) - Estimated disaster level: "Dragon" is one of the three most powerful fighters of Boros' army, he is a grotesque and giant five-headed shape-shifting alien with impressive metamorphic ability which he can use to adapt his body as he wants, so he can even fly, create different type of melee weapons, or even split himself into different beings. Due to his shape-shifting abilities, he cannot be killed by normal means, as he simply regenerates his material. His weakness is kept in small marble-like objects, which when destroyed, stop his regeneration and make one of his heads explode. Each of his heads have a different personality, one speaking in broken sentences, one praising the others remarking on how their thoughts are "good ideas", one analytical and observant, one violent and genocidal, and the last executing the other four's commands. This implies Melzalgald's personality is split between the heads. He is killed through a collective effort from Metal Bat, Bang, Atomic Samurai and Puri-Puri-Prisoner.

Groribas

Voiced by: Shinya Hamazoe (Japanese); Bill Rogers (English)

Groribas (グロリバース, Guroribāu) - Estimated disaster level: "Dragon" is one of the three most powerful fighters of Boros' army, a frightening large creature resembling a humanoid being with venus flytraps for a face and hands. He possesses an acid breath that he claims could melt anything and a large arsenal of fighting moves, but he did not have a chance to display any of his abilities since he was killed by Saitama while he was monologuing.

Geryuganshoop

Voiced by: Hiroki Gotō (Japanese); Brian Beacock (English)

Geryuganshoop (ゲリュガンシュプ, Geryuganshupu) - Estimated disaster level: "Dragon" is a shadowy big creature resembling the stereotyped octopus-like alien, he's one of the three most powerful fighters of Boros' army and is charged with operating the control room of the spaceship; it is he who informed Boros about Saitama's intrusion and Groribas' death. Possessing impressive telekinetic and telepathic powers capable of inducing a real black hole, he claims to be space's number one telekinetic. He attempts to stop Saitama himself after his minions fail by telekinetically crushing Saitama under rubble, but is instantly killed when Saitama throws a small rock at high speed through his head, remarking that using telekinesis to throw rocks is wasteful, as anyone can throw rocks.

Monster Association

Created as an answer to the Heroes Association, the Monster Association (怪人協会, Kaijin Kyōkai) is composed of the deadliest and most insane creatures known to exist on planet Earth.

Psykos

Known with the nickname "Third Eye", Psykos (サイコス, Saikosu) - Estimated disaster level: "Dragon" is the leader of the Monster Association, at first thought to be a monstrous and fat cyclopic creature, she is later revealed to be the former colleague and vice of B-Class rank 1 hero "Blizzard from Hell".

Junior Centipede

Junior Centipede (ムカデ後輩, Mukade Kōhai) - Estimated disaster level: "Tiger" is a great human-faced centipede monster, which attacks his enemies from the underground. During Garou's "hero hunt", he and Human Bird Grass tried to take as hostages an important sponsor of the Hero Association and his son, attacking them at a restaurant during their lunch. It is unknown if he survived his fight with Metal Bat, last seen being rescued by Elder Centipede after being ripped in half.

Human Bird Grass

Human Bird Grass (ヒトトリグサ, Hitotorigusa) - Estimated disaster level: "Tiger" is a big monster with the appearance of a humanoid carnivorous plant. During Garou's "hero hunt", he and Junior Centipede tried to take as hostages an important sponsor of the Hero Association and his son, attacking them at a restaurant during their lunch. However, before they could manage to kidnap them, Metal Bat, who was appointed to protect them as the important members of the Association's personal body guard, challenged them both to a battle, which he won in no time and with small effort, killing Human Bird Grass and crippling Junior Centipede to a certain degree.

Marshall Gorilla

Marshall Gorilla (マーシャルゴリラ, Māsharu Gorira) - Estimated disaster level: "Tiger" is a monster with the look of a talking gorilla with a scar on his right eye and dressed in clothes similar to those of the Green Berets, which fights using a military knife. When many of the members of the Monster Association showed off and attacked various cities simultaneously, Marshall Gorilla attacked W-City, and started a fight with the A-Class hero, Heavy Kong, putting him in a corner and demonstrating his desire to advance in threat level by defeating multiple A-Class heroes. The monster ultimately won the fight with minimal effort, pointing out the enormous difference in power between heroes and monsters.

Electric Catfish Man

Electric Catfish Man (電気ナマズ男, Denkinamazu Otoko) - Estimated disaster level: "Tiger" is an enlarged electric catfish with human arms and legs and mustaches with a lighting's shape, which possesses the ability to emit electricity. When many of the members of the Monster Association showed off and attacked various cities simultaneously, Electric Catifish Man attacked D-City together with Maiko Plasma and they both started a fight with Lighting Genji, giving him a hard time since his electric attacks had no effect on them.

Maiko Plasma

Maiko Plasma (舞妓プラズマ, Maiko Purazuma) - Estimated disaster level: "Tiger" is a monster which looks like a typical geisha with eight tomoe drums on her back and possessing the ability to emit electricity. When many of the members of the Monster Association showed off and attacked various cities simultaneously, Maiko Plasma attacked D-City together with Electric Catfish Man and they both started a fight with Lighting Genji, giving him a hard time since his electric attacks had no effect on them.

Sludge Jellyfish

Sludge Jellyfish (ヘドロクラゲ, Hedoro Kurage) - Estimated disaster level: unknown is a monster which looks like a walking blob with two eyes, similar to a jellyfish, with a goop-like skin and various filaments. He seems to have great regeneration capacities and the ability to flow even through the smallest cracks, thanks to his insubstantial body. He made his first appearance, together with Phoenix Man and Rhino Wrestler, when they stopped the run of Pineapple and Mohican, which were carrying away from the scene the unconscious Hero Association's sponsor and his son.

Rhino Wrestler

Rhino Wrestler (サイレスラー, Sai Resurā) - Estimated disaster level: unknown is an anthropomorphic rhinoceros dressed like a wrestler, which possesses great physical capabilities and with the ability to calculate his opponents' strength basing on the attacks he receives from them. He asserted that he trained his body as hard as he could, holding back his blood lust, to reach the objective of eradicate every hero existing and he's really proud of his capacities. He made his first appearance, together with Phoenix Man and Sludge Jellyfish, when they stopped the run of Pineapple and Mohican, which were carrying away from the scene the unconscious Hero Association's sponsor and his son.

"The Hot Rod Brothers" Gale and Hellfire

"The Hot Rod Brothers" Gale and Hellfire (爆走兄弟 レップウとゴウカ, Bakusō Kyōdai Reppū to Kōga) - Estimated disaster level: unknown are a couple of anthropomorphic androids pretty haughty, claiming to be the fastest monster duo existing. However, during the attack to the Monster Association, they encountered Flashy Flash which killed them both even before they could stop introducing themselves.

"Monster Princess" Goddess Glasses

"Monster Princess" Goddess Glasses (怪人姫 メガネメガミ, Kaijin Ki Megane Megami) - Estimated disaster level: unknown is a female monster resembling a succubus, she claims to have 1000 love slaves and uses her hypnotic powers to control her enemies' mind. During the attack to the Monster Association, she encountered Amai Mask and tried to enslave him, but this attitude angered him enormously and he kills her mercilessly in no time.

Vampire (Pureblood)

Vampire (Pureblood) (バンパイア (血統書付), Banpaia (Kettōsho-tsuki)) - Estimated disaster level: "Demon" is an ancestral and powerful vampire who claims to be the only "true" monster" in the Association, having been born into an elder vampire family and feeding on human blood since his childhood. He is fast enough to catch bullets while seemingly not moving. When many of the members of the Monster Association showed off and attacked various cities simultaneously, Pureblood attacked some random city together with his comrades. During the attack to the Monster Association, he encountered Zombieman and after a hard battle, he was killed by the hero, that was able to win the fight thanks to his immense regeneration capacity.

Fist Fight Djinn

Fist Fight Djinn (拳闘魔人, Kentō majin) - Estimated disaster level: "Demon" is a four-armed humanoid monster, dressed like a boxer with incredible physical strength; he was once a boxer who used to love fighting, however tournaments never seemed to quench his thirst for battle, so his urge for power has turned him into a monster. He couldn't hold back his desire for fighting and decided to attack alone some city, encountering Smile Man during his rampage and knocking him back without effort; in that moment Bang and Bomb arrived at the scene, thinking to find Garou. Bang faced alone the monster and, venting his enormous bitterness for Garou's situation, he slaughtered Fist Fight Djinn in an instant.

Glutton

Glutton (ダイショッカン, Dai Shokkan) - Estimated disaster level: "Demon" is a large gluttony monster, resembling an ogre with large tusks, who defeats his enemies by swallowing them alive. During the attack to the Monster Association, he encounters Pig God who ironically eats him instantly.

Devil Long Hair

Devil Long Hair (魔ロン毛, Ma Ronge) - Estimated disaster level: "Demon" is a tall pale humanoid monster with prehensile hair, which can easily change shape, pierce through flesh and also deflect many enemy attacks. He usually talks randomly mentioning the hair in most of his phrases. During the attack to the Monster Association, he encountered Iairon, Okamaitachi and Bushidrill, starting with them a harsh battle. He was eventually killed by the three heroes because they hysterically cut his hair by instinct and it revealed to be the monster's weak spot.

Phoenix Man

Phoenix Man (フェニックス男, Fenikkusu Otoko) - Estimated disaster level: "Demon" is a man who wore a bird suit so much that mutated into a tall and powerful monster similar to a phoenix, with big vacuous eyes. Even though he seems to have a very calm and diplomatic attitude, he's also very proud of himself and usually boast his capability when it's time to fight. He made his first appearance, together with Sludge Jellyfish and Rhino Wrestler, when they stopped the run of Pineapple and Mohican, which were carrying away from the scene the unconscious Hero Association's sponsor and his son.

Rafflesidon

Rafflesidon (ラフレッドン, Rafureddon) - Estimated disaster level: "Demon" is a giant plant monster which resembles the rafflesia flower with a big anthropomorphic face. He has the ability to release various types of harmful gases, which can hypnotize or paralyze his opponents. He appeared together with Senior Centipede after Metal Bat killed Junior Centipede and his underling Human Bird Grass, in order to continue the mission of taking the sponsor of the Association and his son as hostageses; he and Senior Centipede started then a harsh fight with Metal Bat. After the hero initially succumbed to their combined strength, he became really angry and, showing off his true fighting spirit, he used his full-power swing to kill them both with a single shot.

Senior Centipede

Senior Centipede (ムカデ先輩, Mukade Senpai) - Estimated disaster level: "Demon" is a giant centipede monster with multiple human faces one inside the other, which possesses great physical capabilities and attacks his enemies from the underground, using his sharped spikes. In the webcomics, he was sent by the Monster Association, together with Royal Ripper and The Bug God, for the purpose of saving Garou from the incursion perpetrated against him by Bang and Bomb (and also Genos that was fighting him at the scene) and later when Garou failed, the three of them attacked him resulting in Senior Centipede's death. In the manga remake, he attacked Metal Bat with some other monsters but in the end was still killed.

The Bug God

The Bug God (蟲神, Mushi Gami) - Estimated disaster level: "Demon" is a large and very powerful humanoid insect resembling a strange beetle, he uses the natural strength of bugs to overcome his enemies and is capable of increase the size of his muscles and number of his arms to become stronger. He was killed in the webcomics by Superalloy Blackluster.

Royal Ripper

Royal Ripper (キリサキング, Kirisa Kingu) - Estimated disaster level: "Demon" is a sadistic monster in mummy wrappings who has huge blades in place of his hands, known to show up at dawn to assault children. He is shown to get excited over cutting apart anything, enemies as well as allies. He was sent by the Monster Association, together with Senior Centipede and The Bug God, for the purpose of saving Garou from the incursion perpetrated against him by Bang and Bomb (and also Genos that was fighting him at the scene). Royal Ripper managed to cut off Genos' right arm with his blades.

Elder Centipede

Elder Centipede (ムカデ長老, Mukade Chōrō) - Estimated disaster level: "Dragon" is a mastodonic centipede monster with multiple old human faces one inside the other, which possesses tremendous physical capabilities, since the last time he appeared he nearly leveled a city and then vanished. After Metal Bat finished off Senior Centipede and Rafflesidon, Elder Centipede arrived at the scene and attempted to get the Hero Association sponsor and his son as hostages, but was intercepted by Metal Bat.

Overgrown Rover

Overgrown Rover (育ちすぎたポチ, Sodachisugita Pochi) - Estimated disaster level: "Dragon" is a very large black six eyed creature that behaves like a dog, its role is to guard the Monster Association headquarter to prevent intrusions. It is incredibly durable and capable of firing destructive energy bursts in rapid succession from his mouth. It is one of the strongest monsters, surviving attacks from many powerful heroes, even Saitama.

After the fall of the Monster Association, the weakened Rover became Saitama's pet dog.

Fuhrer Ugly

Fuhrer Ugly (ブサイク大総統, Busaiku Dai-sōtō) - Estimated disaster level: "Dragon" is an incredibly ugly man whose feelings of jealousy and self-hatred manifested into a metamorphosis that changed him to a monster with great physical capabilities and the ability to enlarge his body to become even stronger; because of his inferiority complex and ugliness he particularly hates good-looking opponents, like Amai Mask and Genos.

Gums

Gums (ハグキ, Haguki) - Estimated disaster level: "Dragon" is a large doughy monster with small arms and legs and a mouth for a face, which defeats its enemies devouring them. During the attack to the Monster Association headquarter, it encountered Pig God and engaged with him a hard battle, causing severe injuries to the hero.

Homeless Emperor

Homeless Emperor (ホームレス帝, Hōmuresu Tei) - Estimated disaster level: "Dragon" is a monster that was once a common tramp who encountered a mysterious divine entity, which he claims being "God", that gave him the incredible power of summon energy spheres similar to little suns which explode at the first contact and create huge and flaming bursts. After receiving this power and after a long talk with "God", he ended up to desire the eradication of all humanity from Earth to fulfill his "divine task".

Black Sperm

Easily one of the most powerful members of the Monster Association, Black Sperm (黒い精子, Kuroi Seishi) - Estimated disaster level: "Dragon" is a humanoid monster with a fully black body and a white face, with a typical antenna on top of his head. By consuming organic matter he could create duplicates of himself, during the fight with the hero association he had over 11 trillion copies. He was able to defeat Atomic Samurai, a highly ranked S Class hero, and withstand Tatsumaki's attacks, when he fused 10 trillion of his copies into a single super being called Golden Sperm who was later killed by the awakened Garou. He became weak and only has a single body left after the fall of the Monster Association and along with Overgrown Rover, takes refuge under Saitama. He is afraid of Saitama when he witnessed Saitama's fight with Garou, but has since become reliant on his protection.

Evil Natural Water

Another insanely powerful member of the Monster Association, Evil Natural Water (エビル天然水, Ebiru Tennensui) - Estimated disaster level: "Dragon" is a huge mass of liquid with a pair of creepy eyes floating inside that is capable of firing devastating high-speed jets of water, shape-shifting and is completely immune to all forms of physical attack, however, its intangibility fell victim to Saitama's punches, before being finally dissolved by Pig God's stomach acids.

Other characters

The following characters that appear in the series are not heroes, monsters, or main villains.

The Public

The Public is important in this universe as the very purpose of heroes is to protect civilians. The society is very harsh and fickle and often judges heroes by popularity and appearance. Even though Saitama has been a hero for fun for three years, the public does not recognise him and considers him a weirdo. This prompts Saitama and Genos to join the Hero Association to avoid being branded as criminals, although this doesn't entirely solve the problem for Saitama. Genos disregards the public despite having fans because he believes he hasn't done anything truly worthy, while Saitama never receives any credit for all his feats.

Despite saving the citizens from the giant meteor, Saitama is considered a cheat for stealing credit from S Class heroes and a villain by the public for the destruction of the city from the debris of the shattered meteor.

When the Deep Sea King attacked the city, many heroes nearly lost their lives trying to save the citizens. But when Saitama slew it effortlessly, the public was quick to dismiss the monster and the heroes as weak. Saitama had to sacrifice his credit so that the public would pay attention to the wounded heroes, at the cost of him being called a cheat. If Saitama kills a monster effortlessly, the public believes that the monster was very weak to begin with.

Despite King in reality being a completely normal person, the public is very delusional. King is treated as a celebrity by the public, even getting love confessions. Despite Amai Mask's callous nature, narcissism and questionable traits, he is the most popular hero as the public is charmed by his good looks and singing and acting and his fighting skills.

Professor Kuseno

Voiced by: Kenichi Ogata (Japanese); Doug Stone (English)

Professor Kuseno (クセーノ博士, Kusēno-hakase) is a scientist of justice who transformed Genos into a cyborg, he's a strange old man always dressed as the typical scientist and with an odd type of hair with resembles a mushroom cap.

Zeniru

Voiced by: Hiroki Gotō (Japanese); Kirk Thornton (English)

Zeniru (ゼニール, Zenīru) is a slightly rotund middle-aged multi-millionaire established in F-City, with a strange short curly type of hair. He wears an open bath robe, which reveals a hairy chest and a chain necklace. During the Paradisers arc, the terrorists decided to make an example of Zeniru to advance their cause by destroying his skyscraper/mansion. As the Paradisers makes their way to his location, Zeniru is about to head to safety but he decided to don't, since his hired bodyguard Speed-o'-Sound Sonic appeared and said that he would take out the terrorists. Zeniru then allowed him to dispatch of the criminals.

Shibabawa

Voiced by: Kimiko Saitō (Japanese); Barbara Goodson (English)

Shibabawa (シババワ, Shibabawa) is an old decrepit lady that was renowned for being a great fortune teller that resided in G-City, which appeared on TV on a few occasions. Even though she only predicted a fraction of disasters and there were many that she could not foresee, her predictions were 100% accurate. Because of that, she received special treatment from the Hero Association itself, such as personal escorts. Shibabawa later died from a coughing fit that led to her choking on her cough drops after making a prediction about a God-Level Threat that will come in the next six months.

Busaiku

Busaiku (ブサイクな子供, Busaiku na Kodomo) is a pretty ugly kid who established a strange kind of relationship with Garou. He's dressed with a light T-shirt with a big "B" printed above and dark pants. He's first seen at some park, meeting Garou by case which approached him only because he was holding a hero catalog and Garou was interested in some information about heroes. After a small talk, Garou ends up reading through the catalog to find out Golden Ball's location and goes to meet him. Later on, Busaiku is seen talking with Garou again. Busaiku is the closest thing to a friend Garou really has. The dreaded supervillain sympathises with Busaiku as they were both victims of childhood bullying. After Garou is defeated, all heroes (except Saitama) demand his execution. Busaiku distracts them to help Garou escape.

Zenko

Zenko (ゼンコ, Zenko) is a kid who is revealed to be Metal Bat's beloved little sister and has similar facial features to him. She wears a light colored cardigan and frock. She's first mentioned during the S-Class meeting in A-City, when Metal Bat asserted that Zenko was doing a piano recital which he skipped, with great hunger, to join the meeting.

Martial Artists

The characters which are hand-to-hand combatants, but are not heroes or villains. Most of them participated to the 22th edition of the Super Fight tournament, a famous special tournament that has been used by some as a way to promote their dojos or their names.

Charanko (チャランコ, Charanko)

Voiced by: Toshiki Masuda (Japanese); Todd Haberkorn (English)

He's a young and weak martial artist which always wears a white gi.

Bomb (ボンブ, Bonbu)

An old man which is Bang's older brother, as well as Bang he is a powerful dojo master. He possesses superhuman physical capacity, rivaling that of Silver Fang himself, even thought Bang should be stronger, and is master of the "Whirlwind Iron Cutting Fist" (旋風鉄斬拳, Senpū Tetsuzan-ken). Bomb is first introduced during Garou's "hero hunt", when Bang came to his dojo in order to ask the brother to help him stop his former disciple and Bomb accepted, finding Garou as a possible future threat for his dojo as well.

Sour Face (ニガムシ, Nigamushi)

He is a rather large muscular man with a huge and ostile face which is a professional martial artist always dressed with a white gi. Sour Face was once a disciple of Bang, but left after Garou rampaged through the dojo; sometime afterwards, he created the Sour Face Style martial arts and started his own dojo.

Lin Lin (リンリン,, Rinrin)

A young and graceful girl, which wears a qipao styled top and has hair braided and tied into loops with bells on it and bells earrings. She is rumored to stand at the top of female martial artists. She uses the "Palm Bell Fist" (掌鈴拳, Tenohira Suzu Ken) and participated, for the second time, to the Super Fight tournament; she fought in the first match against Lighting Max and lost after few time, even though she gave the hero a hard time.

Benpatsu (ベンパッッ, Benpatsu)

A man with a long braid and dressed with a black gi. He fight with the "Harsh Path Style" (酷道流武術, Hidoi-ryū Bujutsu) since he's one of the members of the Harsh Path Stylists, probably one of the best. During a side story, he and the other members of the gang entered Bang's dojo in order to crush it and Charanko faced them alone, since he was left guarding it, only to be knock back with ease. Saitama and Genos then took care of the gang (since they were disturbing their lunch), the dojo was half smashed due to the fight, with great bittern for Silver Fang. Benpatsu participated for the first time in the Super Fight tournament, but looses. Afterwards when Gouketsu arrived to turn the Martial Artists into monsters he gladly joined growing a third eye, claws, and fangs, but was later defeated by Suiryu.

Volten (ボルデーン, Borudēn)

A man with round marked eyes which wears a high collared black outfit. He was once hit by a lighting as a child and oddly remained charged with the electricity of it, turning into a superb fighter. He uses the "Bazuzu Explosive Fist" (バズズ流爆拳, Bazuzu-ryū Bakuken) and participated, for the fourth time, in the Super Fight tournament. He was defeated in the tournament and when Gouketsu arrived to turn the Martial Artists into monsters he accepted and became electrical monster but was later defeated by Suiryu.

Bazuzu (バズズ, Bazuzu)

A muscular man with a spiky beard and long mohawk, dressed with a dark one-strap top. He fight with the "Bazuzu Explosive Fist" (バズズ流爆拳, Bazuzu-ryū Bakuken) and participated, for the third time, to the Super Fight tournament. He's known for settling all of his fights within 90 seconds.

Gatlin (ガトリン, Gatorin)

He's a young agile combatant which uses rapid combos to defeat his opponents, ha has eyes of different color, the right dark and the left light. He wears a hooded top with a black jersey and dark fighting gloves. He uses the "Multi Hit Style" (数撃当流術, Kazuuchi Tōryū-jutsu) and participated, for the third time, to the Super Fight tournament.

Hamukichi (ハムキチ, Hamukichi)

He's a stocky and very brawny man with many scares on the body and a constant calm expression on the face. He's dressed with eccentric pants having pandas drawn on and runs a dojo to teach women and children self defense. He fights with the self-defencing technique known as "Sunflower Dojo's Gentle Self Defense" (ひまわり道場の優しい護身術, Himawari Dōjō no Yasashī Goshin-jutsu) and participated, for the first time, to the Super Fight tournament, taking the opportunity to promote his dojo. After he lost the tournament, Gouketsu arrived to turn the competitors into monsters and he accepted transforming into a giant monster hamster but was later defeated by Suiryu.

Dave (デーブ, Dēbu)

An obese fighter which wears a white shirt with black pants and suspenders. Despite his giant body he's capable of high jumps, in fact he defeates his enemies by flattening them under his great weight using a technique known as "Giant Style Crushing" (巨漢流圧殺法, Kyokan-ryū Assatsu-hō). He participated, for the third time, to the Super Fight tournament and he's said to be the heaviest contestant there.

Rosie (ロジー, Rojī)

He's a young bespectacled man in grey elegant dress, whom fight in a very peculiar way, since he analyzes his foe's psychology and turns it in his favor, with a technique that he calls "Psycho Analysis Martial Arts" (心理分析格闘戦術, Shinri Bunseki Kakutō Senjutsu) with which he plans to revolutionize psychology and logic in martial arts. He participated, for the first time, to the Super Fight tournament. When Gouketsu arrived after the tournament was over to turn the competitors into monsters, Rosie was the first to do so, and became super muscular then defeated a competitor who beat him earlier, afterwards Choze twisted his neck and killed him.

Choze (チョゼ, Chozu)

A tall man with an enigmatic smile who wears a grey turtleneck. He uses the "Voter's Fist" (選民血脈格闘戦術, Senmin Kechimyaku Kakutō Senjutsu) and participated, for the first time, to the Super Fight tournament, during which he publicly affirmed that the other contestants were worthless fighters and spoke of supremacist values but was later defeated by Saitama under the guise of Charanko. After the tournament was over and Gouketsu appeared to monsterize the participants, he killed Rosie who became a monster then became a demon with horns but was later defeated by Suiryu.

Mentai (メソタイ, Mesotai)

A youthful martial artist with a neglected look and a band-aid over his nose. He wears a black short sleeved shirt with fur on his coller and wrist and a big chilli printed on; that reminds his fighting style since he uses the so called "Spice Fist" (香辛拳, Kōshin-ken), covering his fists with powerful spices to blind his foes. He participated, for the sixth time, to the Super Fight tournament.

Jakumen (ジャクン, Jakun)

He's a professional wrestler with the look of a large muscular man and dressed as a wresteler as well. He's known for having a weak mentality. He fights with the style that calls "Giga Pro Wrestling" (ギガプロレス, Giga Puroresu) and participated, for the first time, to the Super Fight tournament just for a marketing promotion.

Zakos (ザコス, Zakosu)

A young pretty man which wears a traditional white uniform used in Chinese martial arts with black embroidery and often wears a pair of sunglasses. He fights with the "Head First Rushing Style" (猪突猛真拳, Chototsu Mō Ma-ken) and participeted seven time in a row to the Super Fight tournament so that he's starting to get his own fans; he aim for the first win so that he can finally propose.

Bakusan (バクザン, Bakuzan)

An imposing and thretening hairy man, said to be the top contender of the Super Fight tournament, together with Suiryu, since he has ended all of his fights with one-sided beat downs and won two past editions of the Super Fight tournament. He's dressed with a ragged white gi. He was beaten by Saitama during the tournament, and later became a monster by consuming numerous monster cells and gained power almost as great as Gouketsu.

Suiryu (スイリュー, Suiryū)

A young man with tan skin and a low ponytail, he wears a traditional black uniform used in Chinese martial arts with star-like buttons. He's said to be the top contender of the Super Fight tournament, together with Bakusan, since he won four consecutive Super Fight tournaments in the past. He is very popular and has lot of female admirers. He is outmatched by Saitama in the final match, but wins by default due to Saitama faking his identity. He afterwards defeated Benpatsu, Hamukichi, Volten, and Choze, then attempted to defeat Gouketsu but was no match. After Bakuzan became monsterized and challenged Gouketsu but lost, he started to torture Suiryu until Saitama came to his rescue. Saitama proceeds to kill Bakuzan and Gouketsu very easily, much to Suiryu's amazement. He later vows to become a hero like Saitama. He requests Saitama to take him as disciple, but the hero turns him down.