The Hero Association in One-Punch Man is a corporate organization that works in tandem with the National Hero Registry—their jobs include identifying potential , keeping tabs on them, asg tasks, and establishing a reliable system to tackle danger. Heroes are divided into tiers depending on their power levels and popularity: S being the highest class, followed by A, B, and C, in that order.

As such, S-Class heroes are far beyond those ranked below them, with individuals considered equal in capacity to a small army. Presently, there are seventeen —technically fewer than the other classes, but numbers don't really matter when it comes to these overpowered anime characters.

Updated on July 6th, 2022 by Jomari Elauria: There's no official confirmation for the third season of One Punch Man yet, but the manga continues to chronicle Saitama's adventures as a hero. With that said, fans are hungry to learn more about the powers and abilities of the heroes in the beloved manga and anime series, particularly, The S-Class heroes, who are considered to be the cream of the crop and the most powerful saviors in the world of One Punch Man. 

Puri Puri Prisoner

Puri-Puri Prisoner from One-Punch Man

While many dismiss Puri Puri Prisoner since he's the lowest-ranked S-Class hero, he's actually one of the strongest heroes in One Punch Man. Puri Puri Prisoner can take on a Demon-level villain by himself and has even faced and fought the Dragon-level monster Deep Sea King.

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Aside from his enhanced physique, Puri Puri Prisoner's strength is also heightened by his unique fighting style. Puri Puri Prisoner can use Angel Style, which allows him to increase his body mass and amplify his attacks.

Drive Knight

Drive Knight in One-Punch Man

Ranking 9th on the official S-Class hero list, Drive Knight is a formidable hero (or foe). He wears a simple armor that changes as he uses his Tactical Transformations, which allows him to morph into useful forms, such as a motorbike, fighter jet, and large humanoid robot.

Apart from his transformative abilities, Drive Knight can also use a shape-shifting box that transforms into a weapon or a tool. He's also incredibly perceptive and is an astute strategist. However, Drive Knight can't last long in battle, as he has finite energy reserves.

Child Emperor

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Villains shouldn't be fooled by Child Emperor's appearance. Despite being a pre-pubescent child, Child Emperor's intellect has allowed him to create various contraptions that can be used for offensive and defensive purposes. The backpack he wears all the time contains the superpowered gadgets he uses, which include spider-like limbs.

Being a genius, Child Emperor is also a master tactician and has left several contingency plans in case things don't originally go his way. The S-Class hero also has a powerful giant mech suit that will envelop him and enhance his physical strength.

Pig God

pig god eating octopus one punch man Cropped

Pig God has one of the quirkiest abilities in anime. The S-Class hero, who is often seen eating during meetings, can easily defeat Demon-level threats by devouring them. Pig God has an evolved digestive system that allows him to instantly digest whatever he swallows. Besides that, Pig God can also store people in his belly and keep them safe from his gastric juices.

But despite his exceptional abilities, Pig God can still struggle against Dragon-level villains, such as the mysterious being Gums.

Flashy Flash

flashy-flash-one-punch-man-manga Cropped

The rank 13 S-Class Hero is feared by villains for his immense speed and his katana mastery. Flashy Flash is from the same village Speed-o'-Sound Sonic is from, so he would be the fastest S-Class hero if the top hero Blast of One Punch Man wasn't in the picture.

His speed and proficiency in using a katana allow him to swiftly slice his enemies. Although, Flashy Flash is known for his rude and prideful personality, which can cause him to be reckless on the battlefield.

Tanktop Master

Tanktop Master clenching his fist

Despite being one of the lower-ranked S-Class heroes, Tanktop Master is capable of overwhelming nearly everyone in the lower classes without much effort. He takes on Garou in one instance and nearly defeats the villain until Silver Fang's techniques enter the picture.

It is said that he possesses greater strength than everyone in his Tanktop army put together. That said, Tanktop Master lacks the experience of his colleagues.

Demon Cyborg

Genos's cyborg body glowing in One-Punch Man

Genos is one of the newest additions to the S-Class, proving himself as a hero over and over again, especially during the Monster Association arc when the One Punch Man side character blew up the elder centipede. Given his mostly cybernetic body, he isn't held back by pain, allowing him to push his limits to the extreme.

Genos relies on his strength, agility, and durability to win his battles, and he has recently started incorporating complex strategies into his offensive and defensive moves. This lets him challenge opponents who are technically more powerful than him and win—as long as he can find their weakness in time.

Metal Knight

Metal Knight flying in the air in One Punch Man

Metal Knight, or Bofoi, is a mysterious hero that everyone has a bad feeling about. He is a genius engineer and inventor, building highly versatile robotic suits for a variety of purposes.

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His Battle Robot is employed for fighting, Construction Robot helps rebuild the headquarters of the Hero Association, the Reconnaissance Robot is sent on delicate spy missions, and that's not to mention dozens more. Metal Knight is rarely available in person, smartly eliminating potential risks during battle.

Superalloy Darkshine

Superalloy Darkshine from the One-Punch Man manga.

Superalloy Darkshine is universally considered to be the top S-Class hero when taking into physical strength, considerably more than his muscular comrades like Puri Puri Prisoner.

He throws Garou around for a significant period of time before being overwhelmed, showing that ordinary villains like Carnage Kabuto and Deep Sea King would be no match for him. Superalloy Darkshine even fights Silver Fang without receiving any notable injuries.

Zombieman

Zombieman on the phone — One Punch Man

Zombieman openly acknowledges that he doesn't perform well in direct combat. However, his Regeneration is hands down the strongest of its kind in One-Punch Man.

Zombieman can heal from fatal wounds at a rapid pace, not to mention his incalculable stamina and durability. The reason that this S-Class hero is so rarely defeated is his persistence—he gets up and continues the fight no matter how many times he is crushed by a greater force.