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1965Born, Fukuoka
80Credits
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…
Known for
JUJUTSU KAISENKechizu (voice)
Super Dragon Ball HeroesFu (voice)
The Boy and the BeastTeenage Jiromaru (voice)
One Piece Film RedUsopp (voice)2026A Lazy Day in Thousand SunnyUsoppMovie
2026Assassination Classroom the Movie: Our TimeFutoshi (voice)Movie
2026Gintama the Movie 2026: Yoshiwara in FlamesInorin (voice)Movie
2026BEAT RUNNERSVivace (voice) · 11 episodesShow
2025Mechanical MarieCarl Ojisan (voice) · 12 episodesShow
2025Detective Conan: The 17-Year-Old TruthShinichi Kudo (voice)Movie
2025Stage Play 「Spooky Kitaro」Movie
2025Detective Conan: One-Eyed FlashbackShinichi Kudo (voice)Movie
2024Ranma1/2Ranma Saotome (voice) · 36 episodesShow
2024Mecha-Ude: Mechanical ArmsYakumo (voice) · 12 episodesShow
2024Unification of Japan Gaiden: Yamazaki Family — Joji and His Merry FriendsMovie
2024Detective Conan: The Million-Dollar PentagramKaito Kid / Shinichi Kudou (voice)Movie
2024Train to the End of the WorldShizuru's father (voice) · 1 episodeShow
2024Bakuage Sentai BoonboomgerTicket (voice) · 1 episodeShow
2024BUCCHIGIRI?!Komao (voice) · 12 episodesShow
2024Detective Conan vs. Kid the Phantom ThiefKaito Kuroba / Kaito Kid (voice)Movie
2023The Incident3 episodesShow
2023Detective Conan: Black Iron SubmarineShinichi Kudou (voice)Movie
2023Detective Conan: The Story of Ai Haibara: Black Iron Mystery TrainKaito Kuroba (voice)Movie
2022Urusei YatsuraSaizo (voice), Tsuyuo (voice), B-Bo (voice) · 3 episodesShow
2022Detective Conan: The Bride of HalloweenShinichi Kudo (voice)Movie
2022Miss Shachiku and the Little Baby Ghost"Cute" Voiceover of the Week (voice) · 1 episodeShow
2022Estab-Life: Great EscapeMikhail (voice) · 12 episodesShow
2022ODDTAXI in the WoodsEiji Kakihana (voice)Movie
2021One Piece - En route vers l'épisode 1000Comédien de doublage de Usopp – JaponMovie
2021The Ancient Magus' Bride: The Boy from the West and the Knight of the Blue StormOberon (voice) · 3 episodesShow
2021Detective Conan: The Scarlet BulletShinichi Kudo (voice)Movie
2021Space AcademyJii-chan (voice) · 64 episodesShow
2021ODDTAXIEiji Kakihana (voice) · 13 episodesShow
2021航海王：和之国总集篇配音 · 18 episodesShow
2020The Gymnastics SamuraiBigbird Aragaki (voice) · 11 episodesShow
2020Yashahime: Princess Half-DemonInuyasha (voice) · 15 episodesShow
2020BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense.Shin (voice) · 24 episodesShow
2019Detective Conan: The Scarlet School TripShinichi Kudo (voice)Movie
2019Super Sentai Strongest Battle Director's CutToQger Arsenal (voice)Movie
2019Case Closed: The Fist of Blue SapphireShinichi Kudo / Kaito Kuroba (voice)Movie
20194 Week Continuous Special Super Sentai Strongest Battle!!ToQger Arsenal (voice) · 4 episodesShow
2018RADIANTMaster Lord Majesty (voice) · 21 episodesShow
2018Planetarium HANAKAPPA: Bloom! Pop! Space TravelGarizo (voice)Movie
2018Super Dragon Ball HeroesFu (voice) · 54 episodesShow
2018Peacemaker Kurogane: BeliefShinpachi Nagakura (voice)Movie
2018Case Closed: Zero the EnforcerShinichi Kudo / Kaito Kid (voice)Movie
2018GeGeGe no KitaroIttan Momen · 97 episodesShow
2018EngimonMovie
2017Mazinger Z: InfinityMucha (voice)Movie
2017The Ancient Magus' BrideOberon (voice) · 4 episodesShow
2017One Piece Episode of East BlueUsopp (voice)Movie
2017Case Closed: The Crimson Love LetterShinichi Kudo (voice)Movie
2017Makeruna!! Aku no Gundan!Pepu (voice) · 12 episodesShow
2017Okaeri: Furusato no KaratsuSora Hiroi (voice)Movie
2017Kamiwaza WandaMovie
2017Detective Conan: Episode One - The Great Detective Turned SmallShinichi Kudo (voice)Movie
2016One Piece: The Great Treasure of Tongari IslandUsopp (voice)Movie
2016One Piece: Heart of GoldUsopp (voice)Movie
2016One Piece Film Gold: Episode 0Usopp (voice)Movie
2016Detective Conan: The Darkest NightmareShinichi Kudo (voice)Movie
2016Doubutsu Sentai ZyuohgerIllusion (voice) · 1 episodeShow
2016Shuriken Sentai Ninninger vs. ToQger the Movie: Ninjas in WonderlandTicket (voice), ToQger Equipment VoiceMovie
2016Descending StoriesAmaken (voice) · 25 episodesShow
2015One Piece Episode of Sabo: The Three Brothers' Bond - The Miraculous Reunion and the Inherited WillUsopp (voice)Movie
2015The Boy and the BeastTeenage Jiromaru (voice)Movie
2015Rampo Kitan: Game of LaplaceShitai-kun (voice) · 11 episodesShow
2015Ressha Sentai ToQger Final Live Tour 2015Ticket / ToQger Equipment Voice (voice)Movie
2015Ressha Sentai ToQger Returns: Super ToQ #7 of DreamsTicket (voice)Movie
2015The Adventures of Tyrano BoyZesta (voice)Movie
2015Detective Conan: Sunflowers of InfernoShinichi Kudo / Kaitou Kid (voice)Movie
2015Rin-neSabato Rokudou · 25 episodesShow
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