Majin Buu, one of the most powerful and unpredictable villains in the Dragon Ball franchise, is voiced by Kōzō Shioya in the original Japanese version and Josh Martin in the English dub. Since Buu’s debut during the Majin Buu Saga of Dragon Ball Z, both actors have become closely associated with the character’s many forms, from the innocent Fat Buu to the terrifying Kid Buu. (behindthevoiceactors.com)
Japanese Voice Actor: Kōzō Shioya

Date of Birth
January 28, 1955. (Wikipedia)
About Kōzō
Kōzō Shioya is a veteran Japanese voice actor affiliated with Aoni Production. Throughout a career spanning decades, he has voiced a wide variety of anime characters, ranging from comedic side characters to powerful antagonists.
In Dragon Ball Z, Shioya voices Majin Buu and his various forms. His performance helped define Buu’s unusual personality, shifting seamlessly between childlike innocence, mischievous humor, and terrifying destruction. The contrast between Fat Buu’s playful speech and Kid Buu’s animalistic sounds showcased Shioya’s impressive vocal versatility.
Hometown
Kagoshima Prefecture, Japan. (Wikipedia)
Career Highlights
Some of Kōzō Shioya’s most notable roles include:
- Majin Buu — Dragon Ball franchise
- Pegasus Seiya (early episodes) — Saint Seiya
- Makyō — Fist of the North Star
- Dr. Indigo — One Piece
- Borsalino (young) — One Piece (flashback appearances)
- Pikkon — Dragon Ball Z (selected appearances)
Full Current Filmography
The following list highlights major documented credits and may not be exhaustive.
Dragon Ball Franchise
Television Anime
1994–1996
- Dragon Ball Z — Majin Buu, Evil Buu, Super Buu, Kid Buu
2009–2015
- Dragon Ball Z Kai — Majin Buu
2015–2018
- Dragon Ball Super — Majin Buu
2024
- Dragon Ball Daima — Majin Buu
Anime Films
1995
- Dragon Ball Z: Fusion Reborn — Majin Buu
2013
- Dragon Ball Z: Battle of Gods — Majin Buu
2015
- Dragon Ball Z: Resurrection ‘F’ — Majin Buu
2022
- Dragon Ball Super: Super Hero — Majin Buu
Critical Reception
Kōzō Shioya’s portrayal of Majin Buu is widely praised for making the character both entertaining and terrifying. Fans often highlight his ability to switch between Buu’s innocent humor and destructive rage without losing the character’s unique identity. His performance remains one of the most recognizable villain portrayals in the history of Dragon Ball.
Our Sources
- Behind The Voice Actors – Majin Buu (https://www.behindthevoiceactors.com/characters/Dragon-Ball/Majin-Buu/)
- Kōzō Shioya Biography (https://en.wikipedia.org/wiki/K%C5%8Dz%C5%8D_Shioya)
- Dragon Ball Wiki – Majin Buu (https://dragonball.fandom.com/wiki/Majin_Buu)
- IMDb Profile – Kōzō Shioya (https://www.imdb.com/name/nm0794961/)
English Voice Actor: Josh Martin

Date of Birth
Josh Martin’s exact date of birth is not publicly documented in reliable official sources.
About Josh
Josh Martin is an American voice actor best known for his portrayal of Majin Buu in Funimation’s English dub of the Dragon Ball franchise. Since Buu’s introduction during the Majin Buu Saga of Dragon Ball Z, Martin has become closely associated with the character, voicing multiple incarnations including Fat Buu, Super Buu, Evil Buu, and Kid Buu.
His performance helped define the English-language identity of Majin Buu, capturing the character’s unique mix of innocence, comedy, unpredictability, and terrifying power. Whether delivering Fat Buu’s childlike dialogue or Kid Buu’s primal screams, Martin brought a memorable energy to one of Dragon Ball’s most iconic villains.
Hometown
Josh Martin’s hometown has not been publicly documented in official biographies.
Career Highlights
Some of Josh Martin’s most notable roles include:
- Majin Buu — Dragon Ball franchise
- Kid Buu — Dragon Ball franchise
- Super Buu — Dragon Ball franchise
- Evil Buu — Dragon Ball franchise
- Additional voices in Funimation productions
Although his anime credits are not as extensive as some long-time dub actors, Martin’s work as Majin Buu remains one of the most recognizable villain performances in English-dubbed anime.
Full Current Filmography
The following list highlights major documented credits and may not be exhaustive.
Dragon Ball Franchise
Television Anime
1999–2003
- Dragon Ball Z — Majin Buu, Super Buu, Kid Buu, Evil Buu
2009–2015
- Dragon Ball Z Kai — Majin Buu
2015–2018
- Dragon Ball Super — Majin Buu
2024
- Dragon Ball Daima — Majin Buu
Anime Films
1995 (English Dub Release)
- Dragon Ball Z: Fusion Reborn — Majin Buu
2013
- Dragon Ball Z: Battle of Gods — Majin Buu
2015
- Dragon Ball Z: Resurrection ‘F’ — Majin Buu
2022
- Dragon Ball Super: Super Hero — Majin Buu
Video Games
Dragon Ball Games
- Dragon Ball Budokai series — Majin Buu
- Dragon Ball Xenoverse — Majin Buu
- Dragon Ball Xenoverse 2 — Majin Buu
- Dragon Ball FighterZ — Majin Buu
- Dragon Ball Z: Kakarot — Majin Buu
- Dragon Ball: Sparking! ZERO — Majin Buu
Critical Reception
Josh Martin’s portrayal of Majin Buu has been widely praised for successfully adapting one of Dragon Ball’s most unusual villains for English-speaking audiences. Fans frequently highlight his ability to shift between Buu’s goofy innocence and destructive rage without losing the character’s identity.
His work as Kid Buu, in particular, earned recognition for conveying menace and chaos primarily through screams, growls, and vocal effects rather than traditional dialogue. Many fans consider Martin’s performance one of the defining villain portrayals of the Dragon Ball Z English dub.
Our Sources
- Behind The Voice Actors – Majin Buu (https://www.behindthevoiceactors.com/characters/Dragon-Ball/Majin-Buu/)
- Behind The Voice Actors – Josh Martin (https://www.behindthevoiceactors.com/Josh-Martin/)
- Dragon Ball Wiki – Majin Buu (https://dragonball.fandom.com/wiki/Majin_Buu)
- IMDb Profile – Josh Martin (https://www.imdb.com/name/nm0552692/)
Social Media
No verified public social media accounts or official website for Josh Martin could be confirmed from reliable public sources at the time of writing.
