Acting credits
362
Prolific
Very extensive acting filmography.
Actor
Kappei Yamaguchi
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
2.0
Low visibility
TMDB internal trend index. Higher usually means more searches and page activity now.
Movies: 204Series: 158
TMDB ID: 68472
IMDb ID: nm0945322
Known for: Acting
Born: May 23, 1965
Age: 61
Place of birth: Fukuoka, Fukuoka, Japan
Gender: Male
Adult content flag: No
Career span: 1986 - 2026
Years active: 41
Average TMDB rating: 7.29
Wikidata: Q355173
Also known as
Mitsuo Yamaguchi • Kinoshita Toukichirou • Ushiku Kyouya • Yamaguchi Kappei • Yamaguchi Mitsuo • 木下 桃吉郎 • 牛久 京也 • 山口 勝平 • 山口 光雄 • کاپِی یاماگوچی
Biography
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.
Photos
Movies
Movies
Movie credits linked with Kappei Yamaguchi.
as Futoshi (voice)
Assassination Classroom the Movie: Our Time
2026 • Movie
as Inorin (voice)
Gintama the Movie 2026: Yoshiwara in Flames
2026 • Movie
as Shinichi Kudo (voice)
Detective Conan: The 17-Year-Old Truth
2025 • Movie
as The White Rabit (voice)
Alice in Wonderland –Dive in Wonderland–
2025 • Movie
Stage Play 「Spooky Kitaro」
2025 • Movie
as Shinichi Kudo (voice)
Detective Conan: One-Eyed Flashback
2025 • Movie
Unification of Japan Gaiden: Yamazaki Family — Joji and His Merry Friends
2024 • Movie
as Kaito Kid / Shinichi Kudou (voice)
Detective Conan: The Million-Dollar Pentagram
2024 • Movie
as Kaito Kuroba / Kaito Kid (voice)
Detective Conan vs. Kid the Phantom Thief
2024 • Movie
as Shinichi Kudou (voice)
Detective Conan: Black Iron Submarine
2023 • Movie
as Kaito Kuroba (voice)
Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train
2023 • Movie
as Usopp (voice)
One Piece Film Red
2022 • Movie
as Shinichi Kudo (voice)
Detective Conan: The Bride of Halloween
2022 • Movie
as Eiji Kakihana (voice)
ODDTAXI in the Woods
2022 • Movie
as Comédien de doublage de Usopp – Japon
One Piece - En route vers l'épisode 1000
2021 • Movie
as Shinichi Kudo (voice)
Detective Conan: The Scarlet Bullet
2021 • Movie
as Shinichi Kudo (voice)
Detective Conan: The Scarlet School Trip
2019 • Movie
as ToQger Arsenal (voice)
Super Sentai Strongest Battle Director's Cut
2019 • Movie
as Shinichi Kudo / Kaito Kuroba (voice)
Case Closed: The Fist of Blue Sapphire
2019 • Movie
as Usopp (voice)
One Piece: Stampede
2019 • Movie
as Usopp (voice)
One Piece: Episode of Skypiea
2018 • Movie
as Shinpachi Nagakura (voice)
Peacemaker Kurogane: Belief
2018 • Movie
as Shinichi Kudo / Kaito Kid (voice)
Case Closed: Zero the Enforcer
2018 • Movie
Engimon
2018 • Movie
Series
Series
Series credits linked with Kappei Yamaguchi.
as Vivace (voice) • 11 eps
BEAT RUNNERS
2026 • Series
as Carl Ojisan (voice) • 12 eps
Mechanical Marie
2025 • Series
as Ranma Saotome (voice) • 25 eps
Ranma1/2
2024 • Series
as Yakumo (voice) • 12 eps
Mecha-Ude: Mechanical Arms
2024 • Series
as Shizuru's father (voice) • 1 eps
Train to the End of the World
2024 • Series
as Ticket (voice) • 1 eps
Bakuage Sentai Boonboomger
2024 • Series
as Komao (voice) • 12 eps
BUCCHIGIRI?!
2024 • Series
3 eps
The Incident
2023 • Series
as Saizo (voice) • 1 eps
Urusei Yatsura
2022 • Series
as "Cute" Voiceover of the Week (voice) • 1 eps
Miss Shachiku and the Little Baby Ghost
2022 • Series
as Mikhail (voice) • 12 eps
Estab-Life: Great Escape
2022 • Series
as Oberon (voice) • 3 eps
The Ancient Magus' Bride: The Boy from the West and the Knight of the Blue Storm
2021 • Series
as Jii-chan (voice) • 64 eps
Space Academy
2021 • Series
as Eiji Kakihana (voice) • 13 eps
ODDTAXI
2021 • Series
as 配音 • 18 eps
航海王：和之国总集篇
2021 • Series
as Bigbird Aragaki (voice) • 11 eps
The Gymnastics Samurai
2020 • Series
as Kechizu (voice) • 4 eps
JUJUTSU KAISEN
2020 • Series
as Inuyasha (voice) • 15 eps
Yashahime: Princess Half-Demon
2020 • Series
as Shin (voice) • 24 eps
BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense.
2020 • Series
as Jabbathe (voice) • 1 eps
Vinland Saga
2019 • Series
as ToQger Arsenal (voice) • 4 eps
4 Week Continuous Special Super Sentai Strongest Battle!!
2019 • Series
as Master Lord Majesty (voice) • 21 eps
RADIANT
2018 • Series
as Fu (voice) • 54 eps
Super Dragon Ball Heroes
2018 • Series
as Ittan Momen • 97 eps
GeGeGe no Kitaro
2018 • Series