Kappei Yamaguchi
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. 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.
Filmography
Assassination Classroom the Movie: Our Time
as Futoshi (voice)
Assassination Classroom the Movie: Our Time
as Futoshi (voice)
Gintama the Movie 2026: Yoshiwara in Flames
as Inorin (voice)
Gintama the Movie 2026: Yoshiwara in Flames
as Inorin (voice)
Detective Conan: The 17-Year-Old Truth
as Shinichi Kudo (voice)
Detective Conan: The 17-Year-Old Truth
as Shinichi Kudo (voice)
Alice in Wonderland –Dive in Wonderland–
as The White Rabit (voice)
Alice in Wonderland –Dive in Wonderland–
as The White Rabit (voice)
Stage Play 「Spooky Kitaro」
Stage Play 「Spooky Kitaro」
Detective Conan: One-Eyed Flashback
as Shinichi Kudo (voice)
Detective Conan: One-Eyed Flashback
as Shinichi Kudo (voice)
Unification of Japan Gaiden: Yamazaki Family — Joji and His Merry Friends
Unification of Japan Gaiden: Yamazaki Family — Joji and His Merry Friends
Detective Conan: The Million-Dollar Pentagram
as Kaito Kid / Shinichi Kudou (voice)
Detective Conan: The Million-Dollar Pentagram
as Kaito Kid / Shinichi Kudou (voice)
One Piece Film Red
as Usopp (voice)
One Piece Film Red
as Usopp (voice)
Detective Conan: The Bride of Halloween
as Shinichi Kudo (voice)
Detective Conan: The Bride of Halloween
as Shinichi Kudo (voice)
ODDTAXI in the Woods
as Eiji Kakihana (voice)
ODDTAXI in the Woods
as Eiji Kakihana (voice)
One Piece - En route vers l'épisode 1000
as Comédien de doublage de Usopp – Japon
One Piece - En route vers l'épisode 1000
as Comédien de doublage de Usopp – Japon
Detective Conan: The Scarlet Bullet
as Shinichi Kudo (voice)
Detective Conan: The Scarlet Bullet
as Shinichi Kudo (voice)
Super Sentai Strongest Battle Director's Cut
as ToQger Arsenal (voice)
Super Sentai Strongest Battle Director's Cut
as ToQger Arsenal (voice)
One Piece: Stampede
as Usopp (voice)
One Piece: Stampede
as Usopp (voice)
Peacemaker Kurogane: Belief
as Shinpachi Nagakura (voice)
Peacemaker Kurogane: Belief
as Shinpachi Nagakura (voice)
Case Closed: Zero the Enforcer
as Shinichi Kudo / Kaito Kid (voice)
Case Closed: Zero the Enforcer
as Shinichi Kudo / Kaito Kid (voice)
Engimon
Engimon
One Piece Episode of East Blue
as Usopp (voice)
One Piece Episode of East Blue
as Usopp (voice)
Case Closed: The Crimson Love Letter
as Shinichi Kudo (voice)
Case Closed: The Crimson Love Letter
as Shinichi Kudo (voice)
Okaeri: Furusato no Karatsu
as Sora Hiroi (voice)
Okaeri: Furusato no Karatsu
as Sora Hiroi (voice)
One Piece: Heart of Gold
as Usopp (voice)
One Piece: Heart of Gold
as Usopp (voice)
One Piece: The Great Treasure of Tongari Island
as Usopp (voice)
One Piece: The Great Treasure of Tongari Island
as Usopp (voice)
One Piece Film: GOLD
as Usopp (voice)
One Piece Film: GOLD
as Usopp (voice)
One Piece: Adventure of Nebulandia
as Usopp (voice)
One Piece: Adventure of Nebulandia
as Usopp (voice)
Detective Conan: Sunflowers of Inferno
as Shinichi Kudo / Kaitou Kid (voice)
Detective Conan: Sunflowers of Inferno
as Shinichi Kudo / Kaitou Kid (voice)
Ressha Sentai ToQger vs. Kyoryuger: The Movie
as Ticket (voice)
Ressha Sentai ToQger vs. Kyoryuger: The Movie
as Ticket (voice)
Detective Conan: Quarter of Silence
as Shinichi Kudo (voice)
Detective Conan: Quarter of Silence
as Shinichi Kudo (voice)
Pretty Cure All Stars DX: Everyone Is a Friend - A Miracle All Pretty Cures Together
as Flappy (voice)
Pretty Cure All Stars DX: Everyone Is a Friend - A Miracle All Pretty Cures Together
as Flappy (voice)
One Piece Special: The Detective Memoirs of Chief Straw Hat Luffy
as Usopp (voice)
One Piece Special: The Detective Memoirs of Chief Straw Hat Luffy
as Usopp (voice)
One Piece: Baron Omatsuri and the Secret Island
as Usopp (voice)
One Piece: Baron Omatsuri and the Secret Island
as Usopp (voice)
Pretty Guardian Sailor Moon Special Act: We're Getting Married!！
Pretty Guardian Sailor Moon Special Act: We're Getting Married!！
Detective Conan: Crossroad in the Ancient Capital
as Shinichi Kudo (voice)
Detective Conan: Crossroad in the Ancient Capital
as Shinichi Kudo (voice)
Detective Conan: Captured in Her Eyes
as Shinichi Kudo (voice)
Detective Conan: Captured in Her Eyes
as Shinichi Kudo (voice)
Ultraman Super Fighter Legend
as Astra / Announcer Banjou (voice)
Ultraman Super Fighter Legend
as Astra / Announcer Banjou (voice)
Neighborhood Story The Movie
as Tsutomu Yamaguchi (voice)
Neighborhood Story The Movie
as Tsutomu Yamaguchi (voice)
Butt Attack Punisher Girl Gautaman R: The Final Battle Between Love & Tragedy!
as Shibuya (voice)
Butt Attack Punisher Girl Gautaman R: The Final Battle Between Love & Tragedy!
as Shibuya (voice)
Barefoot Gin Rei
as Daisaku Kusama (voice)
Barefoot Gin Rei
as Daisaku Kusama (voice)
Battle Angel
as Yūgo (voice)
Battle Angel
as Yūgo (voice)