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J. Michael Tatum

J. Michael Tatum

Voice Actor

J. Michael Tatum, an American voice performer who also works behind the mic as an ADR director and script writer, voiced Ryoji Kaji in the Rebuild of Evangelion film Evangelion: 2.0 You Can (Not) Advance.

Role: Voice Actor
Nationality: American
Years Active: 2004-present
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Neon Genesis Evangelion Role

Tatum voiced Ryoji Kaji, the undercover agent and old friend of Misato Katsuragi, in the English-language version of Evangelion: 2.0 You Can (Not) Advance, part of the Rebuild of Evangelion film series based on Hideaki Anno's original story.

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Career and Notable Roles

Working out of Los Angeles since 2004, Tatum is widely known for voicing Sebastian Michaelis in Black Butler, Kyoya Ootori in Ouran High School Host Club, Okabe Rintaro in Steins;Gate, Tenya Iida in My Hero Academia and Erwin Smith in Attack on Titan, and he frequently works as an ADR director and script writer on the same English dubs he acts in.

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Frequently Asked Questions

Who has J. Michael Tatum voiced?

Tatum is widely known for voicing Sebastian Michaelis in Black Butler, Kyoya Ootori in Ouran High School Host Club, and Okabe Rintaro in Steins;Gate. He has built this catalog of lead roles across numerous major English-language anime dubs.

Who does J. Michael Tatum voice in Neon Genesis Evangelion?

Tatum voices Ryoji Kaji, the undercover agent and old friend of Misato Katsuragi, in Evangelion: 2.0 You Can (Not) Advance. The role appears in the Rebuild of Evangelion film series based on Hideaki Anno's original story.

Does J. Michael Tatum work behind the mic besides acting?

Yes, Tatum frequently works as an ADR director and script writer on the same English dubs he voice-acts in. This dual role has made him one of the more hands-on performers in modern anime localization.

When did J. Michael Tatum start voice acting?

Tatum has worked out of Los Angeles as a voice actor since 2004. His two-decade career spans both performing and behind-the-scenes ADR direction and script writing.

What other major anime has J. Michael Tatum voiced in besides Evangelion?

Tatum voices Tenya Iida in My Hero Academia and Erwin Smith in Attack on Titan, two of the biggest modern shonen franchises alongside his Evangelion work.

Sources & Information

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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