
Rikiya Koyama is a Japanese actor, narrator, and voice performer whose extensive credits include roles across the JoJo's Bizarre Adventure video game series.
Koyama voiced Will Anthonio Zeppeli, Jonathan Joestar's mentor in Hamon, for the 2006 PlayStation 2 game adaptation of Phantom Blood and its 2007 film cutscene release. He later returned to the franchise for the fighting games JoJo's Bizarre Adventure: All-Star Battle and Eyes of Heaven, where he voiced Yoshikage Kira in his Kosaku Kawajiri disguise. These roles sit apart from the David Production TV anime cast, giving Koyama a distinct footprint across the franchise's video game side.
A member of Haiyuza Theatre Company, Koyama has built one of anime's most recognizable deep voices, taking on characters described as tough, calm, or simply enormous, from Coyote Starrk in Bleach to Yamato in Naruto Shippuden and Ging Freecss in Hunter x Hunter. He also holds the second-voice role of Kogoro Mouri in the long-running Case Closed and serves as the standard Japanese dub voice for Hollywood actors including George Clooney, Kiefer Sutherland, and Dwayne Johnson.
Koyama has voiced a wide range of characters, from Will Anthonio Zeppeli and Yoshikage Kira in the JoJo's Bizarre Adventure video games to Coyote Starrk in Bleach. He also holds the second-voice role of Kogoro Mouri in the long-running Case Closed and works as the standard Japanese dub voice for stars including George Clooney and Dwayne Johnson.
Rikiya Koyama voices Yamato in Naruto Shippuden. It's one of several tough, calm anime characters in his catalog, built around one of anime's most recognizable deep voices.
Koyama voiced Will Anthonio Zeppeli, Jonathan Joestar's Hamon mentor, in the 2006 PlayStation 2 adaptation of Phantom Blood and its 2007 film cutscene release. He returned to the franchise for the fighting games All-Star Battle and Eyes of Heaven, voicing Yoshikage Kira in his Kosaku Kawajiri disguise.
Koyama, born in 1963, is a member of the Haiyuza Theatre Company. His work there sits alongside decades of anime, video game, and dubbing credits built since he began his career in 1987.
Beyond JoJo's Bizarre Adventure, Koyama voices Ging Freecss in Hunter x Hunter, and provides the standard Japanese dub voice for Kiefer Sutherland.

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