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Tesshō Genda

Voice Actor

With decades of voice work and hundreds of anime and game credits to his name, Tesshō Genda is among Japan's most prolific performers in the field, and in One Punch Man he voices the reclusive scientist hero Metal Knight, also known as Dr. Bofoi.

Role: Voice Actor
Nationality: Japanese
Years Active: 1970-present
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One Punch Man Role

Genda voices Metal Knight, the secretive scientist hero also known as Dr. Bofoi, who commands an array of remote-piloted battle robots rather than fighting in person. The character later rebuilds the Hero Association's headquarters into a heavily armed fortress, and his backstory is tied to a mysterious cyborg attack that once destroyed the hometowns of Genos, Drive Knight, and their mentor Kuseno. Metal Knight's guarded, calculating demeanor gives Genda room to bring the same commanding authority he lends to figures like Optimus Prime and Batman.

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Career and Notable Roles

Across more than five decades, Genda has built one of the largest resumes in Japanese voice acting, credited with well over two hundred roles by the mid-2000s alone. His signature parts include the Japanese-dub Optimus Prime in the Transformers franchise, Kurama from the Naruto series, and Kaido in One Piece, and he currently voices Tigger in the Japanese Winnie the Pooh media. He is especially recognized as the long-running Japanese voice of Batman across multiple animated series and films, and off the anime side he serves as the standard Japanese dub artist for stars including Arnold Schwarzenegger, Samuel L. Jackson, and Sylvester Stallone.

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Frequently Asked Questions

Who does Tesshō Genda voice in One Punch Man?

Tesshō Genda voices Metal Knight, the secretive scientist hero also known as Dr. Bofoi. Rather than fighting directly, Metal Knight commands an array of remote-piloted battle robots, and his backstory ties into a cyborg attack that once destroyed the hometowns of Genos, Drive Knight, and their mentor Kuseno.

What is Tesshō Genda best known for?

Genda is especially recognized as the long-running Japanese voice of Batman across multiple animated series and films. Across more than five decades in the industry, he had already racked up well over two hundred roles by the mid-2000s.

What other anime has Tesshō Genda voiced?

Beyond One Punch Man, Genda voices Kurama in the Naruto series and Kaido in One Piece. He also currently voices Tigger in the Japanese dub of Winnie the Pooh media.

Who does Tesshō Genda voice in the Transformers franchise?

Genda provides the Japanese dub voice of Optimus Prime throughout the Transformers franchise. It stands among the signature parts he has built up since starting his career in 1970.

Which Hollywood stars does Tesshō Genda dub in Japanese?

Off the anime side, Genda serves as the standard Japanese dub artist for major Hollywood stars including Arnold Schwarzenegger, Samuel L. Jackson, and Sylvester Stallone. This work runs alongside his prolific career in anime and video games.

Sources & Information

This content is original writing by Daddy Jim Headquarters based on the One-Punch Man anime series, manga, and official materials. One-Punch Man was created by ONE and Yusuke Murata, published by Shueisha, and animated by J.C.Staff and Madhouse. All rights to One-Punch Man and its characters belong to their respective owners. Episode and chapter references are cited where applicable.

Rights holders

  • Created byONE and Yusuke Murata
  • Published byShueisha
  • Animated byJ.C.Staff
  • Animated byMadhouse

All rights belong to their respective owners.

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 J.C.Staff, Madhouse and Shueisha.
  • Game pages: official box art, credited to the game's respective publishers.
  • Manga chapter pages: volume covers, credited to Shueisha and ONE and Yusuke Murata.

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