King

King (Kingu) is an S-Class, Rank 7, superhero for the Hero Association. King has slightly long, blonde, brushed back hair along with three long scars on the left side of his face. He wears a turtleneck sweater, has sunken cheeks, a defined jawline and a squarish chin. Notably, a loud drumming sound may be heard in his proximity.

King is able to appear extremely calm in threatening situations as well as put out an extremely threatening aura. Despite the intimidating personality King projects, he is actually a coward and an otaku. He has been shown to get very excited about buying a dating game. He is shown to be actually caring and thoughtful but his cowardice usually steps in which prevents him from doing so.

In his childhood, King had won several video game tournaments. At some point within the past 1.5-3 years, King was attacked by the Octopus Claw Man, receiving his characteristic three scars as a result, but is saved by Saitama, who was training to be a hero at the time. Saitama would go on to save his life five more times by destroying the monsters in his vicinity, Vaccine Man among them, but King would always, and unintentionally, get the credit. The Hero Association, capitalizing on the reputation of his strength, made him an S-Class hero without having to take the hero exam and King would be known as "the strongest man on earth". This would continue and King would be paid for the deeds that he had not done.

Metal Bat

Metal Bat (Kinzokubatto) is a S-Class, rank 16, superhero for the Hero Association. Metal Bat resembles a typical Japanese banchō delinquent who sports a pompadour. His eyes and brows greatly emphasize his hot temper. He appears to have a great deal of confidence in himself stating that he did not care whether a threat is a Demon or Dragon level, he would take care of it himself. He also seems to be brash and reckless, as shown when he immediately smashed one of Melzalgald's marbles instead of trying to analyze what purpose it serves for the enemy.

Furthermore he was willing to challenge Handsomely Masked Sweet Mask for his mockery attitude before it was interrupted by a call from his sister and Sweet Mask's client. He speaks in a very rough dialect, pronouncing 'yer' instead of 'your' for example. Despite his brash attitude, he still has a soft side in him when it comes to his sister, who he treats very well and spoils to an extent. Like Saitama, he doesn't care about his rank and sometimes accidentally kills his enemies faster than he intended, such as when he killed Rafflesidon and Senior Centipede before he could get an answers for their motivations. This is different from Sweet Mask's merciless nature.

As an S-Class hero, Metal Bat is very powerful. It's believed he's one of the strongest S-Class heroes, as he was able to threaten Sweet Mask with little to no fear, one of the strongest characters in the series, and even stronger than some S-Class heroes. He was able to take on multiple monsters, such as Senior Centipede and Rafflesidon, who are each a demon level monster. He was even confident enough to fight a dragon class opponent, stating he doesn't care if it is one. Highly Perceptive Combatant: Despite his brash nature, Metal Bat seems to be very perceptive, as he was the first one to discover Melzalgald's weakness. In addition, he was able to notice that Elder Centipede avoided getting his head in contact with Metal Bat's attack. Mind Control Resistance: By hitting himself with his bat, Metal Bat was able to resist the influences of Rafflesidon's gases. Immense Strength: Metal Bat possesses immense physical strength and has taken out many powerful monsters and villains with a single swing, including two demon-class level monsters simultaneously. While being unable to kill the Elder Centipede with one hit, he did push it down and completely stop it in its tracks. Immense Durability:: Metal Bat also possesses immense durability. He was able to take many hits from Senior Centipede, a demon class level monster which would kill a normal human being. In addition, he received a direct hit from Elder Centipede, but did not seem to be fazed by the attack afterwards. Fighting Spirit: Metal Bat was able to take a lot of punishment from battles and still be able to continue to fight as if nothing happened. It is his will to continue to fight, no matter what happens. Immense Reflexes: : Metal Bat also possesses superhuman reflexes as seen in his fight against Garou, where he's able to deflect and block Garou multiple punches despite being injured in his battle against Elder Centipede. Immense Speed: Metal Bat was able to escape a falling spaceship and he even considered Puri-Puri-Prisoner slow.

Puri-Puri-Prisoner

Puri-Puri-Prisoner (Puripuri Purizunā) is a S-Class, rank 17, superhero for the Hero Association. Puri-Puri-Prisoner is a large muscular individual with a cleft chin which has some stubble on it, large lips, and a truffle style haircut. His attire consists of a traditional prison jumpsuit with a light sweater vest with a large heart in the center of it.

Puri-Puri Prisoner is a flamboyant, openly homosexual superhero. He takes an interest in other, up and coming heroes and criminals; an interest which led to his titular jail sentence, as he kept attacking them. Criminals that he apprehends are then added to his harem. He appears to be rather absent-minded, as he did not think to remove his sweater before bulking up, and then blamed his opponent, the Sea King, for its destruction.

Immense Strength: Puri-Puri-Prisoner possesses immense physical strength, he is able to deal a great amount of damage with each punch. Enhanced Speed: Puri-Puri-Prisoner is able to run at great speeds. With his technique Angel Dash, he was able to outrun the Dark Matter Thieves' crashing ship. Puri-Puri-Prisoner Angel ☆ Style (Puripuri Purizunā Enjeru ☆ Sutairu): Puri-Puri-Prisoner increases his body's muscle mass, increasing his already impressive strength to new heights; in a process he calls "transforming." However, his clothing does not increase in size with him, causing it to become torn. Angel ☆ Rush (Enjeru ☆ Rasshu): Puri-Puri-Prisoner leaps towards his opponent and the mirage of an angelic pair of white wings appears behind him. He then unleashes a flurry of punches on his opponent. Dark ☆ Angel ☆ Rush (Dāku ☆ Enjeru ☆ Rasshu): A refined version of his Angel Rush attack in which Puri-Puri-Prisoner, taking the advice of the Sea King, aims to kill with every one of his punches.[16] In addition, his illusory angel wings are colored black, rather than white. Angel ☆ Dash (Enjeru ☆ Dasshu): Puri-Puri-Prisoner runs with great speed.

Bang

Bang (Bangu) also known as Silver Fang (Shirubā Fangu) is an S-Class, rank 3, superhero for the Hero Association, settled in Z-City. Bang owns a dojo passed down from generations, and uses the fighting style, the Rock-Smashing Water Stream Fist. He has an older brother named Bomb, who is the master of Whirlwind Iron Cutting Fist.

Bang is an old man with white-spiky hair, thick eyebrows and a thick mustache. He has distinct wrinkles on his face, a squarish chin and has slightly tan skin. He wears a dark shirt, light colored pants and kung fu shoes. Bang has been shown to be, despite his age, very muscular.

Bang has a serious personality: he acts calm and does not seem to be afraid at the prospect of stopping a dragon-level disaster meteor. Unlike most other heroes in the series, Bang prefers to be called by his name. Bang is also well grounded in the ethics of a hero: he calls the other S-class heroes heartless, the ones nearby for forgetting about the disaster in Z City and the others for attending to their own problems instead. Additionally, when witnessing Tanktop Black Hole accuse Saitama of the civilians' misery, Bang watches from a distance sympathetically, but without interfering, noting that heroes will normally have to deal with the lack of appreciation for their actions and take responsibility. Later, when Charanko confronts Saitama with praise of the martial arts master's skill and hero rank, Bang angrily warns Charanko not to embarrass him, outright stating that Saitama is many times stronger than he is. Perhaps due to losing all but one of his disciples to his former top disciple Garou, on top of his old age and his remaining disciple's incompetence, Bang also eagerly looks for new disciples to succeed him. After stating that he would not want the meteorite to fall on Z City as it would erase his dojo, Bang quickly demonstrates his Ryuusui Gansai Ken (Water Stream Rock Smashing Fist), only to realize that Genos had already disappeared. Later, he invites Saitama and Genos to his dojo claiming to show them something interesting, only to demonstrate the Ryuusui Gansai Ken much to the disinterest of his guests.