Characters: One Punch Man
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Saitama, "Caped Baldy"
Originally an ordinary salaryman
, Saitama was inspired to become a hero when he managed to defeat a crab monster attacking his home town with nothing but his necktie. He trained for three years doing an ordinary if absurdly intense regimen of sit-ups, push-ups, and running
until his powers awoke and he lost all of his hair. Now he's become so powerful that, no matter the opponent, he can defeat them with a single punch. Because of this, he's grown bored with his life of super-heroism.
Genos, "Demon Cyborg"
Genos was an ordinary boy until a rogue cyborg destroyed his home town and killed everyone he loved. He was mortally wounded, but a kind scientist saved his life and rebuilt his body. Genos traveled the world in the hopes of tracking down the cyborg responsible for killing his parents, but chooses to settle down with Saitama after a while in the hopes of also becoming more powerful. Whereas Saitama has raw, undeniable strength, Genos has everything else. That is, looks, intelligence, dedication, money, style, and appeal.
- The Ace: Intelligent, cool-looking, and incredibly powerful. He even becomes one of the top 17 heroes right off the bat. It's just that Saitama blows him out of the water in terms of raw strength, speed and invulnerability.
- An Arm and a Leg: It's not a proper fight if Genos doesn't lose at least one limb.
- Awesome Mc Cool Name: Might be a pseudonym.
- Bishounen: Albeit a very unique example and more masculine version.
- Cyborg: Of the We Can Rebuild Him variety.
- Expy: A pretty boy cyborg will naturally bring Raiden to mind. His backstory is also a parody of your stereotypical "out for revenge" hero.
- Doomed Home Town: He explains that when he was a kid, a rogue cyborg destroyed his home town and everyone he knew, leaving him mortally wounded.
- Funny Afro: When Asura Rhino turns one of Genos' attacks back on him, it makes his hair into this. It stays that way for the rest of the arc.
- Good Thing You Can Be Repaired: He takes much more damage than anyone else (aside from the regenerating Zombieman). After each fight, of course, he's repaired and good as new.
- Hand Blast: He has blasters on his palms.
- Heterosexual Life-Partners: Forces the matter with Saitama by offering to pay him an exuberant amount of money for rent, just so he can figure out how Saitama became so powerful.
- Hollywood Cyborg: It's not made clear how much, if any of him, is still organic.
- Iron Buttmonkey: Spends an awful lot of his on-screen time in multiple pieces, thanks to any given Monster of the Week.
- Just Shoot Him: Invoked and averted. Upon arriving at an enemy base, Genos immediately vaporizes it, much to Saitama's surprise.
- The Lancer: To Saitama. As well as being his self-proclaimed sidekick, Genos is also everything Saitama is not; namely the serious, cool, good-looking kind of guy you'd expect a superhero to be.
- Mundane Utility: Can blow-dry dishes using his hands.
- Overshadowed by Awesome: Zigzagged as he, Saitama and a few others know who's stronger between the two, but most people think that he is the stronger one and assume that Saitama is using someone else's (possibly Genos's) fame, particularly in the entrance exam when the examiner thinks Saitama is nothing to write home about but sees Genos as being pretty impressive.
- Sleeves Are for Wimps: Always, to show off his robotic arms.
- Super Speed: Shown in his first sparring with Saitama. In chapter 61, he & Sonic engaged in a fight. Sonic is fast, but Genos is the one who SNIPPED Sonic's hair. However, in chapter 62, Sonic used his secret technique, showing off his own Super Speed in the process.
- Taking the Bullet: He takes a head-on globule of acid that melts through a good portion of his back in order to protect a little girl.
- Technicolor Eyes: Black sclera and gold irises.
- The Worf Barrage: We have yet to see any of his cybernetically enhanced strength or massive firepower actually accomplish anything on-screen. All of his victories tend to be beating the weaker minions off screen.
S Class Heroes
An unknown hero that has yet to appear in the original web comic.
- The Ghost: Has been mentioned by the characters, but has yet to appear.
- Lampshade Hanging: The fact that nobody, not even the Hero Association, know much about him is repeatedly and mercilessly joked about - apparently, he's just shy, really fussy and has a thing about his privacy.
- World's Strongest Man: The strongest hero in the world.
2. "Tornado of Terror", Tatsumaki
An insanely powerful Esper. Has a younger sister, Blizzard, who is the 1st ranker of B-class heroes. She is generally abrasive and condescending to everyone she talks to, particularly lower-ranked heroes like Saitama.
- Adaptational Attractiveness: Just like her sister she is far more attractive in the reboot. Though she sometimes reverts to the plain look of the original.
- Badass Adorable: Looks like a child, and holds the number 2 spot for the entire Hero Association.
- Berserk Button: When Garou said he killed her sister Blizzard, let's just say she got incredibly pissed.
- People mistaking her age despite the fact that her looks and demeanor give them every reason for assuming she's a kid. Also referring to her with derogatory terms for young people, like "brat" or "missy." She hit Genos so hard and fast after he called her a brat that he automatically corrected himself when he was about to call her a brat again, even though she wasn't anywhere near him.
- Beware The Cute Ones
- Bratty Half-Pint: Her personality is straight-up obnoxious.
- Born Winner: This is basically the reason she's S-Class Hero Rank 2 - she was BORN with the level of power she has.
- Fatal Flaw: Pride, more or less. She a really firm believer of the class system within the Hero Organization and believes skill should match as such.
- The Glorious War of Sisterly Rivalry: With Blizzard, who she thinks is wasting her time and talent in Class B and should ditch those losers and become the hero she was destined to be. Considering this is Tornado we're talking about, her saying her sister belongs in S-Rank with her might be a stealth compliment.
- Good Is Not Nice: The only reason she's not more of an anti-hero is that, despite the way she acts, she does seem to genuinely want to help people and that she does care for her sister.
- Hypocrite: She gets mad when people call her a brat, yet her attitude is exactly like that of a spoiled child.
- Jerkass: Her attitude toward the people around her leaves a lot to be desired. Case in point, after the alien leader is beaten and upon finding out Saitama was the one who did it. She goes starts yelling at him because he's a B Class Hero. When Genos objects, she uses her powers to fling him into a rock and nearly attacked Saitama if Bang had not have gotten her to back off.
- Little Big Sister: Big sister of Fubuki.
- Logical Weakness: Head Injuries can cripple her Psychic Powers.
- Meaningful Name: In the original Japanese manga, her name is not written out with kanji, implying that Tatsumaki (meaning "Tornado") is actually also her real name. She just added "of Terror" to it.
- Names to Run Away From Really Fast: Second most powerful hero in the world, sans Saitama, and essentially the Association's trump card.
- No-Holds-Barred Beatdown: When she's called upon to make sure a monster stays dead, she doesn't mess around (though ironically, in her first appearance, she only severely wounded the robot her subordinates were fighting and it got back up as soon as she left. It was finished off by a passing Saitama).
- No Kill Like Overkill: She alone can handle enemies that can overpower the rest of the S-class heroes.
- She sent Genos flying and flattened him on a wall without lifting a single finger.
- Singlehandedly wrecks an alien spaceship without exerting her powers. Then again Saitama was fighting Boros above the ship and there were numerous times that the ship was hit by their attacks
- Older Than They Look: Despite looking like a loli, she's actually 28. She even looks younger than her younger sister, Blizzard.
- Psychic Powers: And HOW!
- She's Got Legs: When drawn in detail there is a lot of focus on her legs.
- Smug Super: On account of winning the Super Power Lottery. Against major threats she's often the only hero who's any use at all, and she's not shy about reminding everyone of this fact. The fact that Saitama actually beat the alien leader Boros seemed to at least put a dent in her ego.
- The Smurfette Principle: The only woman among the S-class heroes (at least, assuming BLAST is actually male.) And she and her sister are the only recurring female characters, period.
- Steven Ulysses Perhero: Her given name means Tornado, and she fights using telekinesis. Guess what she usually does with it?
- Tsundere: Her attitude is practically bipolar, one minute she'll berate a hero for being useless but in the next chew you out insulting the same hero, if you're lucky.
- Worf Had the Flu: After getting injured by a combined attack from all the top monsters in the Monster Association she doesn't last very long against Garou, though she passes out from over-exertion before he can even attack her.
- You Gotta Have Green Hair
3. Bang, "Silver Fang"
A martial artist. Master of the Flowing Water Fist Fighting Style. Whether Bang is his real name or just another nickname is unknown.
- Bare-Fisted Monk
- Cool Old Guy: He's like 70 years old, and he's still in the hero business, still can kick your ass, and is still one of the leading martial arts figures in the One Punch Man world.
- Covered with Scars: Under that shirt of his lies a body that's seen the wear and tear of a martial artist superhero. Although, his only complaint about his body is about his hips, due to old age.
- Fantastic Fighting Style
- Friendly Rival: With Atomic Samurai.
- The Obi-Wan: Considered on taking Saitama and Genos as his disciples. They both decline, as expected. Genos probably did so due to how 'useless' Fang was in the face of overwhelming raw power. Saitama declines because he doesn't need to resort to martial arts when he has such an overwhelming stat advantage in every area and he probably wants to get a challenge.
- He's also the former master of the now most powerful enemy in the series, "Hero-Slayer" Garou.
- Razor-Sharp Hand
- Secret Keeper: He's one of the few characters besides Genos who knows about Saitama's real power.
4. Atomic Samurai
A swordsman who can cut you to nothingness, slicing your very atoms with a million slashes.
5. Child Emperor
An 8-year old genius inventor who is the brain of the Heroes Association.
6. Metal Knight
A mysterious scientist controlling a powerful ballistic robot. He was sent along with Fang and Genos to destroy a meteor that threatened to annihilate Z-ville. His real name is Bofoy, but no one has ever seen him in person. He only appears in public with his remote-controlled robot that proves completely ineffectual to stopping the meteor. His real name/"Civillian Identity" is Doctor Bofoy
The world's strongest human and the so-called most powerful hero of all times whose powers are said to be comparable to Tornado. The truth is, he's just a normal guy who happened to be in the wrong place at the wrong time. The rest of the cast never knows about King's true identity even when they're up against the most powerful enemy in the manga currently, all of them place their hopes on King.
- Badass Arm-Fold: Is often seen doing this on the battlefield, standing aloof and alone, although that is because he doesn't know what to do with his arms and has to stop himself shaking because he can't fight.
- Badass on Paper: Parodied. Even though he's powerless, King can still intimidate the enemies just by glaring on them, forcing them to flee in terror.
- Born Lucky: Played for comedy - although he is rather pathetic, it still doesn't stop him from being S-Class through sheer co-incidences and sometimes absolute pure luck, simply because he's always in the right place, at the right time, and usually does something completely mundane that helps the situation.
- Bring My Brown Pants: Does this to a giant monster.
- Cowardly Lion: Although he confesses that he's always completely terrified of his opponents and considers himself a coward, he still manages to put up a strong front even against enemies that send other S-rank heroes fleeing, despite having no powers at all.
- The Dreaded: His reputation alone is enough to send powerful enemies running in fear.
- Fake Ultimate Hero: King just doesn't have the heart to tell people they're wrong about him because it might upset the civilians, and so the tales of his 'deeds' keep piling higher and higher....
- I Owe You My Life: He got his scar from an Octopus-Claw Man and Mysterious Being that attacked one day, and if it wasn't for Saitama, he might have died then and there. It takes a while for him to recognize Saitama again, due to him not having his hair, but it's what cements the beginning of his friendship to Saitama.
- Foil: To Saitama; while Saitama is outrageously strong with no recognition, King is a totally ordinary guy who everyone thinks is an invulnerable superhero.
- I'm Not Afraid of You: Many monsters have tried this claim against King. He just continues staring at them, very intently. They don't keep their courage for very long after that. And King gets a moment to play this too, although he's scared of the amassed monsters of Society, he still is able to make them immediately be on-guard through using his reputation alone, is able to scare one of them out of his wits with a small comment about him watching his step and pratically scaring him into running for it (right into a regenerating Zombieman who was beneath the rubble), and ALL the monsters basically scattered when he unfolded his arms, right into the reinforcements.
- Mistaken for Badass: He's the one who took all of Saitama's superhero deeds (from the very first chapter of Vaccineman) since he happened to be the only man in the vicinity.
- Muggle Best Friend: Played with - Anyone who sees King and Saitama together playing video games would think Saitama is the "normal guy" hero (being a B class) to King's "Superhero" (being a S class) - that is, if they don't think Saitama is trying to boost himself via this friendship somehow, or if the neighbours don't get cowed into being awestruck because, y'know, KING IS VISITING RIGHT NEXT DOOR (and might even ANSWER THE DOOR POLITELY IF YOU KNOCK) - But it's actually the other way around.
- Outscare the Enemy: How King defeats his opponents, with a little help from "the King Engine", which is the DOOM DOOM DOOM sound he gives off which turns out to be King's own heart as he tries not to freak out.
- Poor Communication Kills: Played with - King doesn't get a word in on any sort of discussion most of the time, which leads to odd misunderstandings such as Child Emperor mistakenly thinking King can fire laser beams. This gets the S-Rank heroes into serious trouble (until King draws attention to himself by pretending to do the move), which just makes his reputation reach even greater heights because "he used a special move to save all the S-Class heroes" is all that will get circulated in rumors later.
- Secret Keeper: Later on King realizes that it's Saitama whose fame he has been stealing and that Saitama is the absurdly strong hero that's been destroying monsters with one punch. He looks up to Saitama and is one of the few characters that knows how strong Saitama really is.
- Snowball Lie: Played with - the lies are spread by other people, and almost every time that it seems like the bluff might get called, SOMETHING happens that is 1. Extremely lucky for King, because he no longer has to prove he can fight (most weak monsters have a small heart attack and collapse when he appears, and most strong monsters usually get engaged by another hero, which makes them think King was merely distracting them so the other hero could get the credit, or Saitama one shots them completely coincidentally) and 2. Usually happens in a manner that somehow gives King all the credit for his incredibly lucky windfall (for example, practically every kill Saitama does somehow gets accredited to King, no matter how absurd the logic jump is), so he gets a even bigger reputation for being the ultimate hero.
- The Stoic: Played for laughs - see that really tough expression as his profile picture? That's the face he makes to stop himself from expressing absolute terror.
- That One Player: Later in the story, Saitama gets to know his secret, and becomes his gaming buddy. King is VERY good at those games, to the point where the reputation he's earned in-manga actually applies to video games, such as absolutely broken infinite combos and being able to beat really hard games with one hand. To the point that he made Saitama rage and scream "This game is shit!"
- Victory Through Intimidation: King can turn the tide of a battle simply by showing up - his reputation alone makes monsters and heroes alike freeze in place, and villains that randomly run into him on the street literally have a stroke because he's that big of a surprise. And if you try to attack him? all you hear is DOOM DOOM DOOM DOOM DOOM, which can make even the most hard-hearted monster falter with doubt and reluctant to hit him, in case of it being fatal to themselves to even touch him. It's a good thing too, considering King has the fighting ability of a completely normal person.
An immortal superhero that simply cannot die. He will always regenerate no matter how bad his wounds are. He wields various weapons from chainsaws to axes to shotguns.He's a product of the House of Evolution.
His codename at the House of Evolution was "Subject #66".
- An Axe to Grind
- Artificial Zombie
- Chainsaw Good
- Complete Immortality
- Dark Is Not Evil: Zombies are traditionally considered an undead monstrosity, not to mention that he comes from the House of Evolution. Despite all of that, Zombieman is one of the most heroic characters in the series.
- Establishing Character Moment: Introduced as he has finally found the trail of the scientist who created him (the House of Evolution antagonist), and having sworn to kill the scientist for his evil ways, talks with him (while pointing a gun at him) until the discussion shifts to how Saitama (his name isn't mentioned but the reader knows who the scientist is talking about) basically crushed his evil ambitions. Zombieman, seeing that the scientist has actually been "defeated" to the point he's dramatically changed, actually puts away his gun instead of shooting him.
- Implacable Man: He WILL be back to kick your ass no matter how many times you knock him down. He will NEVER stop or surrender pursuing you if you're a threat.
- Ludicrous Gibs: When he pulls out a sharp object, someone's gonna get chopped into pieces, and the battle turns into a messy bloodbath. Sure, most of the times all the limbs and blood scattered around are usually Zombieman's, but the difference is Zombieman's wounds heal and his limbs come back, and his opponents usually don't.
- The Quiet One
- Resurrective Immortality
- Revenge: Subverted as part of his Establishing Character Moment. It's implied that he spent most of his life after escaping from the House of Evolution searching for revenge, but once he actually has the leader at gunpoint, he's willing to listen to them and ultimately lets them live once he's convinced they're genuinely reformed.
- Terror Hero: Comes with being a zombie - the concept of a hero that just won't die until you are either under arrest, defeated, or dead, slowly but surely terrifies his enemies. Because absolutely nothing can kill this guy, nothing can get in his way, and he can hunt night and day to find and capture you. In fact, it's this sheer determination quality alone that got him to the S-Rank hero status in the first place, which makes him the only S-Rank Hero that got in due to his pure, absolutely unkillable defense instead of the absolute fighting strength that usual S-Rank Heros have.
- Weak, but Skilled: He doesn't have freakish strength, or much offensive capacity at all, but his main skill is not being able to die, ever, and since he can practically regenerate from everything, with a skill like that you don't need to be terribly strong when you can simply outlast the strength of your enemy.
- Why Won't You Die?: Gets this a lot from his enemies, mostly because no matter what, HE. DOESN'T. DIE. Blow his arms off? They come back. Blow his entire body to bits? They just regenerate together. Vaporize him to a atomic level? All that does is slow him down, because he'll have to regenerate from nothing and that takes longer.
- You Are Number Six: Subject #66 of the House of Evolution.
A mysterious hero who doesn't appear much. He told Genos to "Be careful of Metal Knight".
10. Pig God
A super obese guy who can swallow anything. He mitigates incoming damage with his thick layer of fat.
- Big Eater
- Extreme Omnivore
- Fat Bastard: Seriously, he's so overweight his hero name is "Pig God". Ironically, he's one of the more heroic characters.
- Gonk: but considering he's like 500 pounds overweight, it's to be expected.
- Hidden Depths: Although his characterization seems unsympathetic at first, making him seem like just a Fat Bastard, he drags himself (while severely injured) all the way from the hospital to a recent battlefield in order to make sure none of the monsters he fought can escape, telling the people who come to get him that it's his responsibility.
- Just Eat Him: How he deals with monsters. Yes. He really does eat them. It's as disgusting as it sounds.
- Strangely, this is also how he keeps his fellow heroes from harm... by swallowing them and keeping them safe in his cushioned belly until he can safely cough them up.
11. Super Alloy Darkshine
The strongest of the S-class heroes in terms of raw power. He's the only one who could stand up against Hero Slayer Garou's final form (though just for a few minutes).
- Bald of Awesome: He used to have real Samson-like hair to go with his physique, but then he realized his body wouldn't be truly shiny with hair, which is why he trained until he went bald.
- Captain Ethnic: Though he was shown to be fair-skinned before being truly "shiny"
- Charles Atlas Superpower: His origin story even shows him as previously being a weakling who was bullied who worked out to become super muscular.
- Color Character: His name literally means that he's a black guy with a shiny muscular body.
- Everything's Better with Sparkles: his entire body produces sparkling bishonen effects when he flexes his muscles and poses (which he does a lot)
- Heroic Build
- Heroic Self-Deprecation: Amazingly enough - it turns out he trained hard to make himself feel a lot better about himself so he could try to avoid this, but being beaten by Garou briefly puts him into a funk until he gets snapped out of it.
- Made of Iron: That body of his isn't for show, you know. Most monsters can't even bruise his skin, because aparently the shine protects it.
- Muscles Are Meaningful: It's the centrepoint of his heroism - his muscles keep him from being harmed and make him extremely strong.
- Pec Flex
- Shirtless Scene
- Training Montage: Shown in-manga how he got his super shiny body - he lifted weights every day, going from a skinny scrawny guy who could barely lift into a superbuff weightlifter. There were two effects: His body became so muscly his muscles actually shined, and he became bald.
12. Watchdog Man
Superhero in a ridiculously funny dog suit. Able to rip apart his opponent with his claws.
- Animal Motifs: In case you missed something, his motif is of a Dog - He took the term "city watchdog" literally, so he wears some sort of dog costume.
- Beware the Silly Ones: He may occasionally speak in thought bubbles, but don't dare underestimate him, because he can rip through hundreds of monsters with ease. He's been slaughtering demon/dragon level monsters with his bare hands alone since his C-Class days.
- Creepy Monotone
- Fluffy the Terrible
- Lethal Joke Character: When he says there's "nothing interesting to report", what he actually means is "Now that I'm here, I killed practically every monster in the area, and now there is no longer anything left to report to you".
- The Stoic
13. Lightspeed Flash
The fastest of all the S-class heroes, even faster than Sonic.
- Foil: To Speed of Sound Sonic. Both are prideful, effeminate speedsters who take an interest in Saitama after he No Sells two of their attacks. Whether there's any relation between the two is brought up in a question and answer segment but gets deflected by Genos not remembering who Sonic is.
- Jerk with a Heart of Gold: Sure, he's quite arrogant (because he can move at the speed of light), but he compliments what he thinks is just a random B-Class hero (actually Saitama) on his noticeable muscles and gives advice to not forget about working on technique. He tells Saitama that he could even be an A-Class hero (which is a big deal for the average B-Class heroes) without any hint of sarcasm.
- Light Is Good
- Lightning Bruiser
- Long-Haired Pretty Boy
- Super Speed: He can literally move at the speed of light.
- You Are Already Dead: Since he can move at the speed of light, you're pretty much dead the moment you encounter him.
14. Tanktop Master
The master of Tanktop fighting style.
- Badass Normal
- Charles Atlas Superpower
- Jobber: Ironically, He's the only S-Rank hero that gets humiliated almost every time he appears. Tornado shows him up using her Psychic powers during the alien invasion and later Garou actually succeeds in beating him, signalling his confidence rise to taking on top A-rank Heros
- Reasonable Authority Figure: Compared to the others who used Tanktop Fighting Style, he's actually a decent guy.
15. Metal Bat
A hot-blooded guy whose weapon is a metallic baseball bat. His home-run swing is no joke, really.
16. Genos(see above)
A burly drag with gay yet super powerful special moves, loves good looking guys, addresses everyone with the suffix -chan
A Class Heroes
1. Handsomely Masked Sweet Mask
- Anti-Hero: Genos says Sweet mask is basically what he could have been, if Saitama didn't enter his life. Consider at the beginning of the manga just how driven by revenge Genos was compared to how he is now.
- Beneath the Mask: Under his lavish hero lifestyle, he's almost certainly hiding a few nasty secrets. Which sort of fits his hero name, really.
- Break the Haughty: Garou later appeared after Sweet Mask mocked the rest of the S class hero for failing to protect humanity, then proceeded to effortlessly defeat him, ending with caving in half of his face RIGHT INTO HIS SKULL, knocking quite a few teeth out.
- Broken Ace: Genos notes immediately that Sweet Mask is similar to himself... except that Sweet Mask has absolutely no compassion or empathy for the monsters. Not even the ones that have surrendered.
- Department of Redundancy Department: His name, Handsomely Masked Sweet Mask.
- Establishing Character Moment: He gets a mission to capture a escaped unfrozen caveman, and return him alive. He butchers the escapee on sight instead. And the people cheer him on, knowing none the wiser.
- Good Is Not Nice
- He Who Fights Monsters: His face when he confronts the Monster Society warps and spasms in a nasty way, making him look down right freakishly terrifying, like he just took off the human mask he wore to let through the disfiguring anger and hatred for monsters he has inside. It's like he's letting it show through so he can have the determination to beat them.
- happens again at the end of the Garou fight. Even when Garou has seemingly calmed down, Sweet mask is absolutly adamant Garou should die for being a monster, all the while making the scariest, horrific face possible. He even uses it to scare the kid bystander, especially when the kid points out that Garou, y'know, didn't even kill anyone.
- Heroic Willpower: It's a ability he actually invokes - His arm gets sliced clean off... and he simply re-attaches his arm again and the arms still works. Remember, he's mostly a normal human, and not a cyborg like Genos.
- Merchandise-Driven: Go ahead, give him even a small amount of room to promote some of his merchandise. He'll talk about it anyway whether or not you prompted him.
- Smug Super
- Weaksauce Weakness: He just can't deal with really ugly looking people. This comes back to bite him later when he encounters a Ugly Mysterious Being, and his body pratically freezes stiff from looking at it.
- Badass: Pretty much one, considering he is Atomic Samurai's best disciple and Rank 2 among A-class heroes. He also survived A-city's nuking.
- An Arm and a Leg: Loses his arm during the fight against alien invaders.
- Cool Helmet: Until it gets quickly destroyed.
- Iaijitsu Practitioner
- Meaningful Name: His name is based on "iai" and "aian" (iron), referring both to his swordsmanship and his armored appearance.
- Badass Normal: While he does take a lot of damage in the process, he single-handedly took out nearly all of the Sea King's underlings on his own. Each of them was, individually, ranked a Tiger level disaster. The main reason he took any damage? Because he was worried that his ultimate attack would hurt the innocent bystanders cheering him on. Given that it one-shot four opponents in one go, he was probably right.
- Blade on a Stick: His weapon of choice
- Death from Above: Is able to rip off a cat monsters limb from above this way.
- Know When to Fold 'Em: The moment he sees the cat monster was just its spawn, he tells Lightning Genji they should retreat.
- Small Name, Big Ego: During the Seafolk invasion, which was level Tiger, he thinks he fended off level God opponents, which are threat that can destroy the human race.
20. Lightning Max
- Defiant to the End: Decides to go out swinging (or kicking in this case) against the Sea King even though he knew he didn't stand a chance.
- Distinguishing Mark: Has a lightning bolt mark on his cheek.
- Fragile Speedster: Although he CAN pack quite a kick, it doesn't actually DO anything against the Sea King. And he's slower than Sonic, so he gets his ass beat HARD.
- Hit-and-Run Tactics
- Speaking Simlish: When he gets suddenly suprised, he just blurts out a string of completey random letters.
- This Is Gonna Suck: Twice during his "fight" against the Sea King. First when he's punched all the way from the building he's standing on and through the window of the building on the opposite end of the street he thinks "Ah, I am so dead" and second when he decides to retreat from the fight after the aforementioned punch only to see that the Sea King has caught up to him in the time it took for him to recover to which he mutters a deadpan "Shit".
29. Golden Ball
Class A Hero who fights with a slingshot. Defeated by the seaweed monster.
33. Spring Moustache
Class A Hero who fights with a rapier. Defeated by the seaweed monster.
??. Heavy Kong
??. Lightning Genji
38. "Snake Fist" Sneck
The lowest ranking A-class hero.
- Arrogant Kung-Fu Guy: Thought he could newbie-crush Saitama... despite being told a few minutes ago that Saitama broke every single physical record in the hero association.
- Overshadowed by Awesome: While he did earn his A-rank, he's still the weakest within that rank.
B Class Heroes
1. "Blizzard of Hell", Fubuki
Tornado's younger sister. Also an esper, albeit much less powerful. Leader of the B-class that she treats like a Yakuza mob.
- Adaptational Attractiveness: Far more attractive in the more detailed reboot. In the original she was androgynous at best; in the redraw, it would be very hard to confuse her for a man.
- Big Little Sister: To Tornado.
- Born Unlucky: Feels that she is doomed to always pale in comparison to her sister.
- The Don: Sort of - Class B has become an almost Mafia-like system due to all the strong Class Bs being loyal to her, and basically forcing the other heroes into working in Class B for the rest of their career since she kept the number 1 spot.
- The Glorious War of Sisterly Rivalry: With her power, she was meant for great things and would've been the number 1 of many things in life. Sadly, her sister came first, and being a super-powerful Esper in her own right, she completely eclipsed her in everything. This causes a little friction in that Blizzard firmly believes the power has gone to her sister's head and made her the aloof, alone jerk she is today.
- Inferiority Superiority Complex: Feels very insecure about her abilities, so she stays a B-class while surrounding herself with weaker subordinates, despite having abilities that could easily put her in the top ten of Class A. Hilariously, even after accepting that Saitama was far stronger than her, she still refers to him, and by association Genos, as her underlings.
- Kirk Summation: Gets one from Saitama, although it's just him telling her that no matter how many B-Class heroes she has below her, they won't be able to save her from an overpowering monster. Sure enough, while she can hold her own against Demon-level Monsters by herself, the moment DemiGarou appears and thoroughly trounces the S-rank heroes in quick succession, all she can do is just hide, knowing she isn't strong enough to even be worth Garou's attention, but not ever being certain.
- Meaningful Name: In one of the flashbacks, someone calls her "president Fubuki" (Fubuki means "Blizzard"), implying that just like her sister's, her Hero name is also derived from her actual real name.
- Psychic Link: She can easily sense her sister's presence, and could tell when she was incapacitated by the Monster Association.
- Psychic Powers: A high level telekinetic.
- Secret Keeper: Becomes one of the few people who sees Saitama's power after she tried to challenge him for refusing to be her underling. Impressed by his strength and his friendships with S-class heroes like King and Bang, she's later seen in his apartment for hot-pot dinner with all of the other characters that know Saitama's true strength.
- Weak, but Skilled: Her Esper Powers count as this, as she manages to defeat a friend from her past, who turned into a mysterious being, by diverting a psychic attack she otherwise couldn't handle by using a spinning barrier of carefully controlled psychic waves.. However, her sister, Tornado, figured out how to perform the same trick a long time ago.
- Younger Than They Look: Is actually Tornado's younger sister.
??. Tanktop Black Hole
A top class B hero. It is uncertain exactly which rank he has on the top.
61. Darkness Blade
??. Jet Nice Guy
C Class Heroes
1. License-less Rider
- Authority Equals Asskicking: Subverted for the most part, but as far as C-Class strength heroes go he's this, and that's mostly because he stops EVERY crime he sees while on patrol. All of them. Yet, he failed to save any person in the series (Mostly what happens is the antagonistic thing of the weak simply concentrates on beating up Licenseless Rider while the original victim escapes). Nonetheless, his heroic resolve is quite amazing.
- By-the-Book Cop: So much so that He even stops Tanktop Master, a S-Rank hero, from beating the life out of Garou (by jumping into his attack, no less!) because it would be murder if he killed a street punk like that without giving him a chance to better or surrender himself peacefully. Of cource, Garou returns the favour by smashing his head into the concrete, but hey, you gotta give License-less Rider props for his unwaivering determination to do things legally.
- Catch Phrase
- Exactly What It Says on the Tin: He apparently lacks a license to operate any kind of motor vehicle or to carry any weapons.
- Expy: Of Kamen Rider, if that wasn't obvious
- Failure Hero: Played for laughs.
- Fan Of The Underdog: The only person to thank Saitama for defeating the Sea King (granted, one of the few who knew about his reason for acting like a fraud).
- Hero Stole My Bike: Played with - Having a bike is his gimmick, and every time he gets trashed his bike usually gets bent horribly out of shape along with him, so he's given a new one.
- Heroic Resolve: Actually goes up against the Sea King, knowing full well he's not strong enough to stop it, and delays it long enough for Saitama to show up and do his thing. Hell, Saitama even compliments him on it and tells him that in his eyes, he'll always be a true hero, no matter what rank he is.
- Running Gag: Throughout the manga he appears at the scene, only to get quickly taken out off panel. This gets subverted in the Sea King arc
- Too Long; Didn't Dub: The Viz translation kept his name as "Mumen Rider", even though "License-less Rider" would have been a perfectly acceptable translation. The fact that he's a Kamen Rider reference might have had something to do with it.
6. Tanktop Tiger
??. All Back-Man
House of Evolution
An organization founded by Dr. Genus
to pursue the goal of human perfection though artificial evolution. First antagonist fought by Saitama and Genos and easily annihilated by the master and his disciple. After being defeated by Saitama, House of Evolution becomes a takoyaki stand.
- Elite Mook
- Freak Out: Has one when he realize Saitama is much, much stronger than he thought, it leads to his using Asura Mode.
- Genius Bruiser: Despite his arrogance and violent temperament, he's actually very intelligent and observant. He immediately realizes how strong Saitama is when he attempts to attack him.
- Super Mode: Asura Mode. Of course against Saitama it doesn't help much, and he gets killed in one hit.
- Super Strength and Super Speed: Enough to beat Genos to a pulp.
- Super Toughness: Completely unfazed from Geno's blasts or punches.
- The Brute
- Unstoppable Rage: The effect of his Asura Mode lasts during one week.
Dark Matter Thieves
A group of intergalactic invaders filled with some of the strongest species in the Universe, led by an alien called Boros. Having already conquered several worlds in the universe, Earth is their most recent planet to plunder.
- Aliens Are Bastards: He orders his ship to level A-City completely. Why? Because it was there, and he had nothing better to do.
- Alien Invasion: This thing conquered entire galaxies.
- Affectionate Parody: Of Dragon Ball, where alien invaders are always super-strong.
- Anime Hair: To go with the DBZ parody.
- Badass: The first opponent to survive a single punch from the main character. It would sound silly in any other manga, but in this one, it's QUITE A GODDAMN ACHIEVEMENT. Following that, he's also the first character to put up something resembling a fight against Saitama.
- Authority Equals Asskicking: He's the leader of the alien invaders and is naturally the strongest member.
- Battle Aura: have you guessed he's the DBZ parody yet?
- Be Careful What You Wish For: He really wanted a exhilaratingly powerful opponent to fight, and he got one.
- Blood Knight: He really, really wants a good fight.
- Cerebus Syndrome: His entrance into the story shifts the light-hearted nature of the manga a little. Just a little, though. Oh, and he's the first villain to survive a normal punch from Saitama. Subverted when, as he lays dying, he accuses Saitama of not fighting seriously the whole time, although his arc still changes the mood of the story for the darker due to the sheer devastation it causes.
- Dangerous Forbidden Technique: Meteoric Burst, a Super Mode that amps ups his already impressive strength and speed but at the cost of putting tremendous stress on his body similar to anaerobic exercise. He usually only uses it to finish fights quickly.
- Eye Beams
- Human Aliens: Ironically the only non-human thing about his looks is that he has one cyclops-like eye.
- Healing Factor: Apparently has the best of his entire species. Not that it helps that much against Saitama's punches.
- Tron Lines: Appears on him when he uses Meteoric Burst, along with a Power Up Full Color Change.
- Kamehame Hadoken
- Not So Different: He's a powerful being who, after becoming the strongest being in his home planet, fell into a depression because there was no one left worth fighting.
- Powered Armor: His armour channels the powers he was born with, and also acts like a lock. destroying it just makes his power go out of control, energy wise.
- The Prophecy: The entire reason he came to Earth? Some alien Prophet predicted there'd be a worthy equal to be his opponent for him there. He finds his opponent alright, but Saitama is in his own league. But Boros doesn't mind, because he got the duel he dreamed of.
- Too Powerful to Live: His final epithet to Saitama.
- Victory Is Boring: The entire reason he became a galactic conqueror was in the hopes that one day, he'd find a enemy worth fighting.
- The Worf Barrage: He immediately proves how he's on a completely different level compared to the previous antagonists in the series when he gets back up after getting punched by Saitama. It's a downplayed example though since he still took quite a bit of damage from it.
- He's later on the giving end of a Worf Barrage when his ultimate attack, Planet Buster Roar Cannon, is blown away by Saitama's Serious Series: Serious Strike.
- Achilles' Heel: His brain, a small marble like organ, is the key to his regeneration and is also the only thing keeping him alive but he is easily killed once it's caught. This is mitigated somewhat by the fact that he has multiple heads and how he can freely move his brain within his body. However his regeneration always begins with his head meaning that it can be easily found if he's completely destroyed and forced to regenerate from scratch.
- Badass: Capable of holding his own against multiple S-Class Heroes, though it should be noted that he failed to kill or even significantly injure any of them.
- From a Single Cell: He has been punched, pulverized and diced into into pieces multiple times yet he can regenerate seemingly endlessly as long as one of his brains remain intact.
- Lovecraftian Superpower: He can freely reform the shape of his body, from separating into multiple bodies, merging all of his heads and bodies into a single form and creating Combat Tentacles, hammers and swords out of his body.
- Multiple Head Case
- Nightmare Face
- Smug Snake: Repeatedly taunts the S-Class heroes on how their attacks are useless due to his regeneration only to slowly lose control of the fight once they figure out his weakness. He later claims that the S-Class heroes would die instantly if he focused solely on attacking them, only to be shocked to find that Bang wasn't hurt from his attack.
- Unskilled, but Strong: What's mainly dangerous about him is his incredible attack power and how his regeneration allows him to shrug off most attacks.
- Boom, Headshot: How he dies. Saitama flicks a rock through his head.
- Everything's Squishier with Cephalopods: Just a head with a bunch of tentacles.
- Mission Control: Seems to be his role on the alien ship.
- Mind over Matter: Claims to be the most powerful telepath in the universe.
- Oh, Crap: Continually as every attempt to stop Saitama fails. Has a more comical one when Saitama trolls him by saying he's lost and then going in the opposite directions Geluganshp gives him.
"Hero killer" Garou
- Arrogant Kung-Fu Guy: Used to be Bang's top student, before Bang found out Garou wanted to be a Monster. Garou is still quite confident of his skills, and pushes his limits daily. This backfires because Bang gets worried Garou might become an unstoppable monster, so he calls his brother, Bomb, for backup and they kick Garou's ass straight to the monster hospital. Yes, the monsters have a infirmary for monsters that get beat up by heroes and survive.
- As Long as There Is Evil: Played with - Ultimately, Garou wants to be the "world destroying evil" simply because at least against him humanity would stand a chance, because they could stand up against him as many times as it took to beat him. And by focusing on him, humanity would never have to worry about its greatest enemy: Itself.
- A Twinkle in the Sky: Eventually Saitama uppercuts him so hard he flies into orbit... AND THAT STILL DOESN'T KILL HIM. This just makes him disappointed that Saitama's strength is unfair, so he just resolves to become a "unfair Evil" in order to stand against him and he returns in a bigger form.
- Berserk Button: Absolutely DO NOT be a condescending jerk about Justice and Heroism in Garou's presence unless you want the most humiliating beatdown of your life, which Sweet Mask learned the hard way when he tried to give a lecture on how pathetic the S-Ranks were being mid-battle. Garou responds by literally punching his face in, mid-rant.
- Card-Carrying Villain: He has "Hero Killer" as a title. He introduces himself by walking into a meeting at the Hero Association, which is full of various rogues and evil doers. (in-context: The association was putting the word out about the world-ending prediction, hoping the Underworld might decide the world ending is against their own self-interests), and loudly proclaiming they are all weaklings and that he, the Human Monster, could defeat all of them right here to prove it.... and then he actually does it. He then goes for a casual stroll while making a threat to the Hero Association head. He also doesn't pay for his meals.
- Came Back Strong: One of his abilities is "What doesn't kill me, only makes me stronger". And he's become very, very strong indeed.
- Curb-Stomp Battle: Both played seriously and played for laughs - played seriously in that Garou is really brutal in beating up heroes, then played for laughs when Saitama lightly "tap" punches him for Dine-and-Dashing, which is results in a OHKO. But immediately goes back to serious because Garou SURVIVES THE PUNCH. This means that his special abilities pretty much make it so that he adapted to Saitama's insane strength, which makes him unbeatably strong, and it puts him on the fastlane to becoming the Mysterious Being DemiGarou.
- Then subverted. Even when he evolves over 4 times, Saitama is still beating him so brutally that crushed his "unfair evil" ultimate mode, leaving him barely standing. Saitama, not even scratched, points out towards the end that his transformations were making him weaker.
- Even Evil Has Standards: Isn't interested in killing civilians like "some sort of crazed mass murderer" - He's only a Monster to fight Heroes - And still takes time help some fat kid with his bully problems who is later kidnapped to lure out said Heroes by the monsters, repeatedly, But the latter times were mostly to save the kids life from Garou's monster allies who would have killed the child. Yes, Garou kidnaps the child back from the other monsters, just so a hero is guaranteed to come after him.
- Foil: To Saitama; their backstories are extremely similar, save that Garou wanted to be a villain rather than a hero.
- From Nobody to Nightmare
- Good All Along: Saitama certainly thinks so. Judging by Garou's expression when Saitama explains it, he's right. He (and the other Monsters) also notes that Garou went out of his way to avoid actually killing any humans during his so-called Hero Hunt. He also reveals that Garou's threat to kill the child he spent his entire story arc protecting was a bluff by pointing that Garou was walking in the wrong direction. Saitama quickly grows bored of their fight for this very reason: Saitama became a Hero because he wanted to fight villains. Garou isn't a true villain — he's just a guy making a ruckus in Saitama's neighborhood.
- Good Thing You Can Heal: Another of his abilities, the ability to adapt his body and slowly heal himself. His body is physically battered - his ribs have been broken A LOT, and that's not accounting for all the other damages he's accumilated over the years.
- Horny Devils: His appearance plays with it. His horns used to be his hair before he gained the desire to become a real monster for heroes to fight. This does two things: it changed his physical appearance to that similar to demon, and all his hair turns into his two "horns", leaving him bald.
- Later subverted: it really was just a costume.
- Hero Killer: Oh come on, it's in his villain nickname. Near the end of his arc, He beats nearly every single hero that was S class, which includes Tornado, and even the A class number 1 without any effort. Though Saitama notes that Garou didn't actually kill any of them.
- Knight of Cerebus: Ultimately, this is the sort of Monster Garou wants to become - the type of monster that, once it appears, changes the atmosphere of a battle completely. He actually succeeds, too - he becomes capable of defeating almost all the S-Rank heroes and he actually makes Saitama fight seriously-ish. Garou survives several of Saitama's serious punches and causes large amounts of destruction in his fruitless attempts to injure Saitama which ultimately end in Saitama getting bored of the fight. Incidentally, he is the only villain so far to actually DODGE Saitama's attacks consistently.
- Large Ham: He's loud and bombastic, like the cartoonishly hammy supervillains he worships.
- Mook Horror Show: Probably the best example, since he managed to last an entire fight against Saitama. Not only he is a category above the entire S-class heroes, but his abilities went to the point that he could block literal light-speed punches, and cuts that could split atoms, by evolving god-like abilities in martial arts. Then Saitama, an amateur with "normal punches", crushed him over and over again, to the point that he crossed all the possible ways to defeat him. Due to this, Garou labels him the representation of the unfairness of justice. Even becoming the unfairness of evil left him only as a punching bag for a couple of minutes.
- Nightmare Fetishist: Ever since he was a kid, he would always play the role of the monster that the heroes fight. Always. Of course he respected the monsters due to their more often than not superior effort. Unfortunately, certain kids took advantage of this to have an excuse to beat him up. This just made him more determined to become the sort of monster that can beat self-centered, self proclaimed "heroes" like them. Ironically, if it was the other way around, he would've been a lot like Genos.
- Power Makes Your Hair Grow: His hair grows outwards wildly, and becomes more horn-ish as he fights and becomes stronger until he transforms into a mysterious being and his hair becomes real horns. He goes bald in exchange, though.
- Later subverted: it really was just a costume.
- Scarf of Asskicking: As he progressively gets stronger, he eventually gets an ominous scarf.
- Sole Survivor: He is the only villain so far to have a serious-ish battle with Saitama and survive.
- Talking the Monster to Death: It's very gradual, but Garou's worldview is very slowly deconstructed. Saitama breaks it by asking simple questions during the fight ( it didn't hurt that Garou's previous responses stopped working), and even after he's beaten ("Are you Okay with that?"), which Garou seemingly decides upon after seeing the kid that constantly got kidnapped throughout the arc stick up for him, simply because Garou saved his life every time, and retreats.
- The Faceless: As Demi Garou - although you see a few features, eventually he gets so strong due to Saitama getting serious on him, almost everything about him is blacked out and featureless - you can't even tell WHAT he looks like anymore. And then Saitama literally punches his face and scalp off.
- ...revealing his human eyes.
- Walking Spoiler: You seeing all this white?
- What Measure Is a Non-Human?: Played with - Garou has a interesting mindset on what a monster should and shouldn't do, and other monsters question if he's either too human or an outright scary, wild force of nature.
- Wild Card: Garou doesn't have any qualms about massacring weak "villains" or monsters that disappoint him. He also has a weird habit of letting the Heroes he savagely beats up live, simply so they can get stronger for the eventual rematch.
- The Worf Barrage: In the end, his self-evolution-adaptability powers. Each hit of Saitama literally made him stronger and stronger until he became a demonic god-like being.... and then it simply couldn't go higher, and ended up regressing him with each subsequent punch ultimately reverting him to his human form. Saitama literally killed his ultimate villain concept of Came Back Strong, one attack at the time .
- Would Hurt a Child: Garou taunts the defeated S-class heroes by threatening to kill the boy who has been used as a hostage throughout the story arc. Saitama calls his bluff, pointing out that Garou was walking away from the boy instead of towards him (Saitama was the only person whose night vision was good enough to see this).
- You Are What You Hate: After finishing his desperate Motive Rant, he becomes outraged that Saitama isn't acting as a proper hero... which means that for all his hatred of heroes, he did have a concept of an ideal hero after all, and his actions, at their core, were born from a desire to make the world a better place, as described below.
- Zero-Approval Gambit: Revealed to be his true modus operandi: he believes that only a grand, unifying evil can force heroes to truly act like ideal heroes, and force everyone else to set aside their own differences.
Evil Natural Water
The One Punch Man setting has a lot of monsters and mysterious beings, mostly due to a currently unknown factor (although some beings have an explained background). Normally these monsters would be quite dangerous, but in One Punch Man these creatures usually exist simply to be reduced to a fine red mist in a single panel the moment Our hero, Saitama, shows up. There are some subversions to this, like monsters that are fought by other heroes being shown to be quite strong, and the monsters are slowly getting tougher. It is later revealed that they even have their own secret society, so expect longer articles the further into the series we go
Oldface & Beefcake
The first regular monster to have his own arc. His impressive abilities matches even Class S heroes.
"Speed of Sound" Sonic
- Amusing Injuries: The first time he fights Saitama, he's defeated via a Groin Attack. In their second fight Saitama smashes his face into the ground so hard that in the extra page it's shown that it left an imprint in the concrete.
- Axe Crazy: At times.
- Blood Knight: He's positively thrilled when he comes across an opponent who can actually be a challenge.
- Card-Carrying Villain: Declares himself as one during his second encounter with Saitama in order to goad the latter into fighting him. This works much better than expected, as Saitama was in the middle of searching for a villain to defeat in order to prevent him from losing his hero status due to inactivity.
- Department of Redundancy Department: His name.
- Dude Looks Like a Lady: It was a hot topic for a while before it was revealed for sure that he was a guy.
- Full-Frontal Assault: Being forced to take off his clothes to escape a monster doesn't seem to faze him. Genos thinks he's weird.
- Giving Them the Strip: When the Sea King tries to crush him in his fist, he abandons all of his clothes in a last ditch effort to escape.
- Expy: Judging by his outfit, he's likely what the author thought Ryuu Hayabusa would look like as a kid.
- Lightning Bruiser
- Long-Haired Pretty Boy
- Mr. Fanservice: Murata puts a lot of effort into showing just how tight Sonic's outfit is.
- Ninja: Of course!
- Off with His Head!: How he deals with anyone he attacks.
- Overshadowed by Awesome: The series makes it clear that, despite his obsession with the nigh-unbeatable Saitama, Sonic is possibly one of the most dangerous human characters in the series. He just picked the exact wrong person to see as a rival.
- Scarf Of Ass Kicking
- Slasher Smile: He's a master of this!
- Stalker Without a Crush: Becomes obsessed with defeating Saitama after being curbstomped by him twice. In his own words, he can't overcome the feeling of being a loser unless he beats Saitama. Unfortunately for him.
- Super Speed: Hint: his name.
- Time to Unlock More True Potential: You've got to hand it to him, he trains really hard to try and give Saitama a challenge. Not that it helps, mind, but still he goes off to train and get more abilities after almost every defeat.
- Unknown Rival: Although he declares himself to be Saitama's rival, the difference in strength is obvious and Saitama even has a difficult time remembering his name (he calls him "Cross of Bones Panic").
- Worf Had the Flu: His fight with Sea King; he is unarmed, having just broken out of prison, and while even a fully powered Sea King still couldn't match Sonic in speed, Sonic could not land any blows powerful enough to hurt him. Sonic runs away, and after arming up comes back, but by then Sea King had pissed off Saitama.
- According to Word of God, Sonic would have defeated Sea King in his base form.
Bang's only disciple. Quite the braggart.
- Berserk Button: Pressed each time someone disrespects (for him at least) his master.
- Butt Monkey
- Overly Narrow Superlative: Was originally the lowest ranking member of Bang's dojo, which was also pretty much what saved him from being trashed by Garou, and subsequently became the top ranked disciple by virtue of being the only one left.
- Small Name, Big Ego: He thought he could take Genos and Saitama in a fight. Genos proved him otherwise.