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Dr. Kuseno from One Punch Man in a close-framed cel-shaded anime scene with a detailed environment
The provided image is an artist's interpretation made for this entry. Details may differ from official depictions. The character and franchise remain © their respective rights holders.

Dr. Kuseno

Character

Presented at first as a kindly scientist devoted to justice, this elderly genius is the man who rebuilt Genos as a cyborg and continues to service the young hero's body. He treats his creation almost like a grandson, though the webcomic eventually reveals a far more sinister side to him.

Race: Human (later Cyborg)
Alias: The Rampaging Cyborg
Gender: Male
Status: Alive
Location: Kuseno's Laboratory
English Va: Doug Stone
Occupation: Scientist
Anime Debut: Episode 4
Japanese Va: Kenichi Ogata
Manga Debut: Chapter 7 (mentioned), Chapter 40
Webcomic Debut: Chapter 45
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Appearance

Age shows plainly in this slender old man. A bowl-shaped haircut juts outward from his scalp, and his face carries stretched ears alongside a prominent nose. Pale, narrow eyes with grayish centers complete the look.

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Personality

Toward Genos, the doctor behaves like a devoted father, dispensing hard-won advice and worrying constantly over the cyborg's safety. He repeatedly urges the young hero to avoid rash choices and insists that the two of them fight side by side. His concern is sharpened by memory, since in his own youth he chased justice with the same dangerous abandon he now sees in Genos, and he pours himself selflessly into building better upgrades even as age wears on him.

The webcomic overturns all of this. There he stands exposed as the true architect behind The Organization, a ruthless figure who fabricated Genos' tragic backstory, staged his own murder to stoke the boy's rage, and ordered machines to level entire cities in pursuit of destroying the world. Every act of kindness is revealed as calculated manipulation, and he is later shown to have made himself into the very Rampaging Cyborg Genos hunted all along.

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History

Four years before the main story, the scientist was tracking the cyborg that had razed a certain town when he discovered its lone survivor, a boy pleading to be remade as a machine. He honored the request, and the rebuilt youth adopted the name Genos, vowing to hunt down the killer. The two spent years laboring together, the doctor claiming that the same rampaging machine had also slaughtered his own household.

He continually forges new components for Genos, refining the hero's frame after brutal fights and even donning a rocket-armed combat suit to reach him during the Monster Association crisis. His intellect alone produced the entire cyborg body, and he tends to every repair and improvement it undergoes. The webcomic strips this account bare, revealing the tragedy as invention meant to bind Genos to his cause, with both Genos and Drive Knight serving as his pawns.

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Frequently Asked Questions

Is Dr. Kuseno actually evil in One Punch Man?

In the mainline manga, Dr. Kuseno appears as a devoted, fatherly scientist, but ONE's webcomic reveals a darker truth: he is the true architect behind The Organization, having manipulated Genos through a fabricated tragedy for his own ends.

Why is Genos hunting Dr. Kuseno?

Genos originally set out hunting the Rampaging Cyborg he believed destroyed his hometown and family, not realizing that the webcomic later reveals Dr. Kuseno himself to be tied to that very identity.

Is Dr. Kuseno the Rampaging Cyborg?

In the webcomic continuity, yes. Dr. Kuseno is eventually shown to have made himself into the Rampaging Cyborg that Genos had been hunting all along.

Did Dr. Kuseno fake his death?

Yes, in the webcomic version of events, Dr. Kuseno staged his own murder to fuel Genos's rage and bind the young cyborg to his cause.

Who is Dr. Kuseno in One Punch Man?

Dr. Kuseno is the elderly scientist in One Punch Man who rebuilt Genos as a cyborg and continues to maintain his body, initially presented as a kindly mentor devoted to justice.

Sources & Information

Looking for more on Dr. Kuseno? The Dragon Ball Wiki on Fandom has a dedicated page with community notes.

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This content is original writing by Daddy Jim Headquarters based on the Dragon Ball anime series, manga, and official materials. Episode and chapter references are cited where applicable.

Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:

  • Movie pages: theatrical posters and key visuals, credited to Toei Animation and Shueisha.
  • Game pages: official box art, credited to Bandai Namco, Atari, and other publishers.
  • Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Akira Toriyama.

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