Rikiya Koyama
Voice ActorRikiya Koyama is a Japanese actor and voice actor affiliated with the Haiyuza Theatre Company who voices the towering ocean menace Deep Sea King in One Punch Man.
One Punch Man Role
Koyama voices the Deep Sea King, the hulking amphibious monster who terrorizes City Z and pushes several early heroes past their limits before Saitama steps in. The role plays directly to Koyama's specialty for oversized, brutal antagonists, a type he has voiced in multiple long-running franchises. His deep, booming delivery gives the character its menace during one of the anime's most memorable first-season arcs.
Career and Notable Roles
Koyama has spent decades voicing towering, often monstrous characters, from Coyote Starrk in Bleach to Fukuro in Fairy Tail. He is also known for two long-running fan favorites: the ANBU operative Yamato from Naruto Shippuden and the Hunter Association's Ging Freecss, father of protagonist Gon, in Hunter x Hunter. Since 2009 he has additionally provided the second voice of detective Kogoro Mouri in Case Closed. Outside anime, Koyama serves as the go-to Japanese dub artist for stars including George Clooney, Dwayne Johnson, Kiefer Sutherland and Ma Dong-seok.
Frequently Asked Questions
Who does Rikiya Koyama voice?
Koyama voices Coyote Starrk in Bleach and Yamato, the ANBU operative, in Naruto Shippuden. He is also known for playing Ging Freecss, father of protagonist Gon, in Hunter x Hunter.
When did Rikiya Koyama start voicing Kogoro?
Koyama has provided the second voice of detective Kogoro Mouri in Case Closed since 2009. That role runs alongside his long list of monstrous and towering anime characters.
Who does Rikiya Koyama voice in One Punch Man?
Koyama voices the Deep Sea King, the hulking amphibious monster who terrorizes City Z and pushes several early heroes past their limits before Saitama steps in. His deep, booming delivery gives the character its menace during one of the anime's most memorable first-season arcs.
Does Rikiya Koyama dub any Hollywood actors?
Yes, Koyama serves as the go-to Japanese dub artist for stars including George Clooney, Dwayne Johnson, Kiefer Sutherland and Ma Dong-seok. That dubbing work runs alongside his anime voice acting career.
How long has Rikiya Koyama been voice acting?
Koyama was born in 1963 and has been active in the industry since 1987. He is affiliated with the Haiyuza Theatre Company.
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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.
Official resources:
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