Atsushi Miyauchi

Birth Date: 08/07/1969

Seiyuu Atsushi Miyauchi (宮内敦士) has been active since the early 1990s, working across stage, live-action drama, anime, and dubbing. Best known for voicing Bruce Banner/Hulk in the Japanese MCU dubs, Cioccolata in JoJo's Bizarre Adventure: Golden Wind, and Masamori Sumimura in Kekkaishi, his deep, rough vocal presence has defined some of Japanese dubbing's most demanding roles. Affiliated with Miki Production.

Explore 3 official voice acting credits — from The Oni in Ghost of Yōtei to many other animated and gaming productions.

Atsushi Miyauchi’s Grip on Japanese Dubbing and Anime Voice Work

A cinema trip during his ronin year changed everything. Watching the American film “Angel Heart” at a theater in Omiya City, the Saitama-born actor found the pull of performance impossible to ignore. That spontaneous afternoon set the course for a career now spanning more than three decades across live-action drama, stage productions, anime, and the dubbing booth. Affiliated with Miki Production and the stage troupe Gekidan Yaso-kai, Miyauchi built his reputation on a voice that sits low, rough, and utterly authoritative – the kind that makes stoic heroes and calculating villains land with equal conviction.

Most Known Roles of Atsushi Miyauchi

- Bruce Banner / Hulk (Mark Ruffalo dub) – Marvel Cinematic Universe films
- Masamori Sumimura – Kekkaishi (2006-2008)
- Cioccolata – JoJo’s Bizarre Adventure: Golden Wind (2018)
- Vinsmoke Niji – One Piece (2018-present)
- Daiju Mononobe – Eden of the East (2009)
- Yu Jin – Dynasty Warriors series
- Max (Japanese cinema version) – Mad Max: Fury Road
- Egba Atler in Mobile Suit Gundam: Cucuruz Doan’s Island

The MCU and the Weight of a Signature Role

Since 2012, Miyauchi has been the Japanese voice behind Bruce Banner and the Hulk across the Marvel Cinematic Universe, a position that demands tonal range within a single character – the measured restraint of a scientist perpetually at war with himself, and the raw force of a creature that has none. Dubbing Mark Ruffalo’s understated performance required holding both registers without collapsing the tension between them. That ongoing assignment sits alongside high-profile dubs for Christian Bale, Tom Hardy, Karl Urban, and Gerard Butler, cementing his status as one of Japan’s most in-demand dubbing seiyuu for Hollywood productions. His work on Robert De Niro’s role in “Taxi Driver” remains, by his own account, among the most personally significant projects he has taken on.

JoJo’s Bizarre Adventure and the Art of Playing a Villain

Casting Miyauchi as Cioccolata in “Golden Wind” was a pointed choice. The character – a deranged surgeon whose cruelty functions as a kind of pleasure – sits at the far end of any comfort zone, and Miyauchi leaned into the psychotic edges without overcooking them. The performance made the character’s most confrontational scenes genuinely unsettling rather than cartoonish. That instinct for controlled menace also carries into his portrayal of Vinsmoke Niji in “One Piece,” where the cold, raid-suited prince of the Germa Kingdom demands a precise emotional flatness that signals danger more than any raised voice could.