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

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

When I first decided to commit to watching One Piece seriously, I knew I was embarking on one of anime's longest and most beloved series. With over 100...
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.
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.
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.
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.
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.
This content is original writing by Daddy Jim Headquarters 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 Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
Official resources:
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.