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), 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.
He is married and has a daughter, Akane Yamaguchi (山口 茜), and a son, Ryunosuke Yamaguchi (山口 竜之介), who also are voice actors.
Description above from the Wikipedia article Kappei Yamaguchi, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known For
One Piece Film Red
(2022)
Usopp (voice)
Dream 9 Toriko & One Piece & Dragon Ball Z Super Collaboration Special!!
(2013)
Usopp (voice)
One Piece: Episode of Skypiea
(2018)
Usopp (voice)
Kiki's Delivery Service
(1989)
Tombo (voice)
One Piece Film: GOLD
(2016)
Usopp (voice)
One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends
(2014)
Usopp (voice)
Hunter x Hunter: Phantom Rouge
(2013)
Feitan (voice)
One Piece: Curse of the Sacred Sword
(2004)
Usopp (voice)
Detective Conan: Magician of the Silver Sky
(2004)
Kaito Kid / Shinichi Kudou (voice)
One Piece: Adventure of Nebulandia
(2015)
Usopp (voice)
One Piece: Baron Omatsuri and the Secret Island
(2005)
Usopp (voice)
Detective Conan: The Time Bombed Skyscraper
(1997)
Shinichi Kudo (voice)
One Piece: The Desert Princess and the Pirates: Adventure in Alabasta