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Hiroshi Shirokuma

Voice Actor

Hiroshi Shirokuma is a Japanese voice actor affiliated with Production Baobab who voices Onimaru in the One Piece anime.

Agency: Production Baobab
Role: Voice Actor
Nationality: Japanese
Years Active: 2003-present
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One Piece Role

Shirokuma provides the Japanese voice of Onimaru, the giant catfish that helps carry the Straw Hat alliance during the Raid on Onigashima in the Wano Country arc. The role is one of several creature and supporting-character parts that make up the Production Baobab actor's work within the series.

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Career and Notable Roles

Active since 2003, Shirokuma has built a career as a Japanese voice actor affiliated with Production Baobab, taking on supporting and character roles across various anime productions alongside his work in One Piece.

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Frequently Asked Questions

Who does Hiroshi Shirokuma voice in One Piece?

Hiroshi Shirokuma voices Onimaru in the Japanese version of One Piece, a giant catfish that appears during the Wano Country arc. The part is one of several creature and supporting-character roles that make up his work within the series.

What role does Onimaru play in the Wano Country arc?

Onimaru helps carry the Straw Hat alliance during the Raid on Onigashima, acting as transport rather than a speaking character. It is one of the creature roles that make up Shirokuma's contributions to One Piece's large ensemble cast.

When did Hiroshi Shirokuma begin his voice acting career?

Shirokuma has been active as a voice actor since 2003, building a career centered on supporting and character roles across various anime productions. His One Piece work as Onimaru falls within that long career of ensemble and creature parts.

What talent agency represents Hiroshi Shirokuma?

Shirokuma is affiliated with the talent agency Production Baobab. Under the agency, he has taken on supporting and character voice roles across various anime productions since 2003.

Who is Hiroshi Shirokuma?

Hiroshi Shirokuma is a Japanese voice actor affiliated with Production Baobab, active in the industry since 2003. He is known among One Piece fans for voicing Onimaru, the giant catfish featured in the Raid on Onigashima during the Wano Country arc.

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Sources & Information

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

Rights holders

All rights belong to their respective owners.

Character and scene imagery on this site is original artwork by Daddy Jim Anime, 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 Toei Company.
  • Game pages: official box art for the One Piece console and mobile games, credited to Bandai Namco.
  • Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Eiichiro Oda.
  • Licensed imagery: Photographs of real people, including creators, voice actors and production staff, are used under licence from the rights holder or the applicable stock provider, or under the terms of a public licence permitting editorial use. Each such image is reproduced in its licensed form and remains the property of its owner.
  • Exceptions: Limited exceptions to the practices described above may apply to individual entries. Where an exception applies, it is noted on the entry itself alongside the applicable attribution. Rights holders may contact us regarding any attribution and it will be reviewed promptly.

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