Stand by · pulling the latest frames
Stand by · pulling the latest frames

Mitsuo Yamaguchi (山口 光雄, Yamaguchi Mitsuo), better known by his stage name of Kappei Yamaguchi (山口 勝平, Yamaguchi Kappei) is a Japanese voice actor and actor from Fukuoka, affiliated with Gokū and 21st Century Fox. He is best known for the roles of Ranma Saotome (Ranma ½), Jackson Neil (Miracle Girls), Tombo (Kiki's Delivery Service), Yattaro (Kyattou Ninden Teyandee), InuYasha (InuYasha), Ryuichi Sakuma (Gravitation), L (Death Note), Usopp (One Piece), Hideyoshi (Law of Ueki), and Kaito Kid and Shinichi Kudo (Case Closed). His current starring roles include that of Raimon "Monta" Taro, the Deimon Devil Bats' ace receiver in Eyeshield 21. Yamaguchi has appeared in eroge as Kyōya Ushihisa (牛久 京也, Ushihisa Kyōya). He made his first public appearance in North America at Otakon 2008; and was also a guest at Sakura-Con 2009. Yamaguchi's third appearance to date has been at Animazement in 2010.
7.8Kiki's Delivery Service
1989
7.8Detective Conan: The Phantom of Baker Street
2002
7.2Detective Conan: One-Eyed Flashback
2025
7.2One Piece Film Red
2022
7.0Detective Conan: Black Iron Submarine
2023
7.1Detective Conan: Quarter of Silence
2011
7.1Detective Conan: Crossroad in the Ancient Capital
2003
7.4Detective Conan: Captured in Her Eyes
2000
7.4Assassination Classroom the Movie: Our Time
2026
6.5Detective Conan: The Scarlet Bullet
2021
7.1Case Closed: The Fourteenth Target
1998

Gintama: Yoshiwara in Flames
2026
7.3Detective Conan: The Last Wizard of the Century
1999
7.0One Piece: Giant Mecha Soldier of Karakuri Castle
2006
6.9Detective Conan: Full Score of Fear
2008
6.9One Piece: Clockwork Island Adventure
2001
6.8Detective Conan: Dimensional Sniper
2014
7.1One Piece: The Movie
2000
6.9Detective Conan: The Million-Dollar Pentagram
2024
7.2One Piece Film: GOLD
2016