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Yoku Shioya

Voice Actor

Yoku Shioya has worked as a Japanese actor and voice actor since his 1972 debut in Triton of the Sea. He voices Will A. Zeppeli, the Hamon master who trains Jonathan Joestar, in JoJo's Bizarre Adventure.

Role: Voice Actor
Nationality: Japanese
Years Active: 1966-present
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JoJo's Bizarre Adventure Role

Yoku Shioya voiced Will A. Zeppeli in the JoJo's Bizarre Adventure anime, the Hamon master descended from the Zeppeli line who trains a young Jonathan Joestar in the Ripple technique during the Phantom Blood arc. The mentor figure is a foundational character in the franchise's mythology, setting up the Hamon fighting style passed down through later generations of the Joestar family.

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Career and Notable Roles

Beyond JoJo's Bizarre Adventure, Shioya is known for voicing Ryota Miyagi in the basketball anime Slam Dunk and has also worked as a voice director on projects including Basilisk: The Kouga Ninja Scrolls. He comes from a family in the industry: his older brother, Kōzō Shioya, was also a voice actor.

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Frequently Asked Questions

Who does Yoku Shioya voice in JoJo's Bizarre Adventure?

Yoku Shioya voices Will A. Zeppeli, the Hamon master descended from the Zeppeli line who trains a young Jonathan Joestar in the Ripple technique during the Phantom Blood arc. The mentor character is a foundational figure in the franchise's mythology, introducing the Hamon fighting style passed down through later generations of the Joestar family.

What other anime has Yoku Shioya been in?

Shioya is known for voicing Ryota Miyagi in the basketball anime Slam Dunk, one of the signature roles of his long career in Japanese anime. He has voiced characters across the industry for decades.

Has Yoku Shioya worked as a voice director?

Yes, Shioya has worked as a voice director on projects including Basilisk: The Kouga Ninja Scrolls, in addition to his acting career. His work spans both performing and directing across Japanese anime productions.

Is Yoku Shioya related to other voice actors?

Yes, Shioya comes from a family in the industry: his older brother, Kōzō Shioya, was also a voice actor. Both brothers built careers within the Japanese voice acting industry.

When did Yoku Shioya start his voice acting career?

Shioya began working in the Japanese entertainment industry in 1966, with his voice-acting debut coming in 1972 in Triton of the Sea. That makes him one of the longest-active performers in Japanese anime voice work.

Sources & Information

This content is original writing by Daddy Jim Headquarters based on the JoJo's Bizarre Adventure anime series, manga, and official materials. JoJo's Bizarre Adventure was created by Hirohiko Araki, published by Shueisha, and animated by David Production. All rights to JoJo's Bizarre Adventure and its characters belong to their respective owners. 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:

  • Movie pages: theatrical posters and key visuals, credited to David Production and Shueisha.
  • Game pages: official box art, credited to the game's respective publishers.
  • Manga chapter pages: volume covers, credited to Shueisha and Hirohiko Araki.

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