Skip to main content
Kappei Yamaguchi

Kappei Yamaguchi

Acting1965Fukuoka, Fukuoka, Japan

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.

Description above from the Wikipedia article Kappei Yamaguchi, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Acting History

2025
2024
Detective Conan vs. Kid the Phantom Thief
as Kaito Kuroba / Kaito Kid (voice)
Detective Conan: The Million-Dollar Pentagram
as Kaito Kid / Shinichi Kudou (voice)
Mecha-Ude: Mechanical Arms
TVas Yakumo (voice)
Train to the End of the World
TVas Shizuru's father (voice)1 eps
Ranma1/2
TVas Ranma Saotome (voice)24 eps
BUCCHIGIRI?!
TVas Komao (voice)
Bakuage Sentai Boonboomger
TVas Ticket (voice)1 eps
2022
One Piece Film Red
as Usopp (voice)
Estab-Life: Great Escape
TVas Mikhail (voice)
Urusei Yatsura
TVas B-Bo (voice)1 eps
Miss Shachiku and the Little Baby Ghost
TVas "Cute" Voiceover of the Week (voice)
2021
Detective Conan: The Scarlet Bullet
as Shinichi Kudo (voice)
One Piece - En route vers l'épisode 1000
as Comédien de doublage de Usopp – Japon
ODDTAXI
TVas Eiji Kakihana (voice)13 eps
Space Academy
TVas Jii-chan (voice)
JUJUTSU KAISEN
TVas Kechizu (voice)4 eps
2020
Yashahime: Princess Half-Demon
TVas Inuyasha (voice)15 eps
The Gymnastics Samurai
TVas Bigbird Aragaki (voice)11 eps
2019
One Piece: Stampede
as Usopp (voice)
Chibi Maruko-chan
as Kenichi Oono (voice)
Case Closed: The Fist of Blue Sapphire
as Shinichi Kudo / Kaito Kuroba (voice)
Super Sentai Strongest Battle!!
TVas ToQger Arsenal (voice)
Vinland Saga
TVas Jabbathe (voice)1 eps
2018
Case Closed: Zero the Enforcer
as Shinichi Kudo / Kaito Kid (voice)
Peacemaker Kurogane: Belief
as Shinpachi Nagakura (voice)
Super Dragon Ball Heroes
TVas Fu (voice)54 eps
GeGeGe no Kitaro
TVas Ittan Momen97 eps
RADIANT
TVas Master Lord Majesty (voice)21 eps
2016
One Piece Film: GOLD
as Usopp (voice)
One Piece: Heart of Gold
as Usopp (voice)
JoJo's Bizarre Adventure
TVas Shigechi (voice)4 eps
Doubutsu Sentai Zyuohger
TVas Illusion (voice)1 eps
Showa Genroku Rakugo Shinju
TVas Amaken (voice)25 eps
2013
Lupin the Third vs. Detective Conan: The Movie
as Shinichi Kudo / Kaito Kuroba (voice)
Hikonin Sentai Akibaranger
TVas Chief Editor HVD (voice) / Chief Clerk Blu-Ray (voice)1 eps
Danganronpa: The Animation
TVas Hifumi Yamada (voice)2 eps
2010
Heart and Yummie
as Heart (voice)
Yu-Gi-Oh!: Bonds Beyond Time
as Daitokuji (voice)
Coicent
as White Deer (voice)
Detective Conan: The Lost Ship in the Sky
as Shinichi Kudo / Kaito Kid (voice)
Atashin'chi: The 3D Movie
as Fujino (voice)
Tensou Sentai Goseiger
TVas Ain-I of the Neutral (voice)1 eps
Magic Kaito: Kid the Phantom Thief
TVas Kaito Kuroba / Kaito Kid (voice)12 eps
2006
Detective Conan: The Private Eyes' Requiem
as Shinichi Kudo (voice) / Kaito Kuroba (voice)
Angel's Feather
TVas Hamura Shou (voice)2 eps
Kiba
TVas Hugh (voice)51 eps
PreCure Splash Star
TVas Flappy (voice)49 eps
Death Note
TVas L (voice)37 eps
Ayakashi: Samurai Horror Tales
TVas Kaikaimaru (voice)
2004
Detective Conan: Magician of the Silver Sky
as Kaito Kid / Shinichi Kudou (voice)
Dead Leaves
as Retro (voice)
DearS
TVas 及川彦郎(配音)
Yu-Gi-Oh! GX
TVas Professor Daitokuji / Lyman Banner (voice)180 eps
Doki Doki School Hours
TVas Kenta Suetake
Tokusou Sentai Dekaranger
TVas Thousanian Gineka (voice)1 eps
Sgt. Frog
TVas Tororo51 eps
2003
Mouse
TVas Sorata Muon (voice)
Peacemaker
TVas Shinpachi Nagakura (voice)24 eps
Pretty Guardian Sailor Moon
TVas Artemis (voice)49 eps
Papuwa
TVas Chappy / Dr. Gunma
2000
Escaflowne: The Movie
as Shesta (voice)
One Piece: The Movie
as Usopp (voice)
Android Kikaider
TVas Saburo Kazeda (voice)
InuYasha
TVas InuYasha (voice)193 eps
Gravitation
TVas Ryuichi Sakuma (voice)
1999
Detective Conan: The Last Wizard of the Century
as Shinichi Kudo / Kaito Kuroba (voice)
Betterman
TVas Keita Aono (voice)26 eps
Kamikaze Kaitou Jeanne
TVas Noin Claude44 eps
Eden's Bowy
TVas Jorrne
One Piece
TVas Usopp (voice)
Gravitation: Lyrics of Love
TVas Ryuuichi Sakuma
1998
Case Closed: The Fourteenth Target
as Shinichi Kudo (voice)
Cyber Team in Akihabara
TVas Crane Bahnsteik (voice)
Cowboy Bebop
TVas Rhint (voice)1 eps
Flint: The Time Detective
TVas Kyoichiro Narugami39 eps
Fancy Lala
TVas Taro Yoshida (voice)26 eps
Shadow Skill
TVas Low (voice)
1997
Noiseman Sound Insect
as Manabu (voice)
Eternal Family
as Sasuke (voice)
Revolutionary Girl Utena
TVas Shiori's boyfriend (voice)39 eps
CLAMP School Detectives
TVas (voice)26 eps
Ayane's High Kick
TVas Kappei Inagaki (voice)
Jungle de Ikou!
TVas Takuma (voice)
1996
Ultraman Super Fighter Legend
as Astra / Announcer Banjou (voice)
Neighborhood Story The Movie
as Tsutomu Yamaguchi (voice)
Bronze: Zetsuai Since 1989
as Shibuya (voice)
Shadow Skill: The Movie
as Scrib Lowengren
Baby and Me
TVas Takuya Enoki (voice)35 eps
Yat, The Space Patrol
TVas カナビー
Can Can Bunny Extra
TVas Kenta (voice)
Fire Emblem
TVas Julian (voice)
Jewel BEM Hunter Lime
TVas バース (voice)
B'T X
TVas Camilla (voice)25 eps
Detective Conan
TVas Shinichi Kudo (voice)
1995
Shadow Skill: Epilogue
as Scrib Lowengren (voice)
Wedding Peach
TVas Takuro Amano51 eps
Neighborhood Story
TVas Tsutomu Yamaguchi (Voice)
1994
Tokyo Babylon 2
as Subaru Sumeragi
The Mighty Gin Rei
as Daisaku Kusama (voice)
Bondage Queen Kate
as Dick (voice)
Barefoot Gin Rei
as Daisaku Kusama (voice)
Mobile Fighter G Gundam
TVas Sai Saici (voice)49 eps
Captain Tsubasa J
TVas Ryou Ishizaki (voice)47 eps
Red Baron
TVas Fake Ken / Ken Kurenai
Mighty Space Miners
TVas Ushiwaka Nanbu (voice)
1993
Battle Angel
as Yūgo (voice)
Miracle Girls
TVas Yuuya Noda (voice)51 eps
Shippuu! Iron Leaguer
TVas Kiwami Juurouta
The Cockpit
TVas Soldier Utsunomiya (voice)
Please Save My Earth
TVas Hirohiko Kazama (voice)
Battle Angel
TVas Yugo (voice)
1992
Hanappe Bazooka
as Hanahei Yamada (voice)
Tokyo Babylon 1
as Subaru Sumeragi
Boyfriend
as Ougi (voice)
Delinquent in Drag
as Suke Banji (voice)
Ranma 1/2 the Movie 2: Nihao My Concubine
as Ranma Saotome ♂ (voice)
Tottoi
as Billia (voice)
Desperate Love 1989
as Katsumi Shibuya (voice)
Tokyo Babylon
TVas Subaru Sumeragi (voice)
KO Century Beast Warriors
TVas Wan Dababatta
Free Kick Toward Tomorrow
TVas Toto (voice)
Zetsuai 1989
TVas Katsumi Shibuya (voice)
1991
Trusty Ginjiro
as Ginjiro Yamazaki (voice)
Urotsukidōji II: Legend of the Demon Womb
as Young Munchausen II (voice)
Madara
as (voice)
Genji Tsuushin Agedama
TVas Hikari Yumenokōji (voice)51 eps
Madara
TVas Madara (voice)
Here Is Greenwood
TVas Tenma Koizumi (voice)
Slow Step
TVas Akiba Shuu
RG Veda
TVas Ryū-ō (voice)
1990
A Wind Named Amnesia
as Johnny (voice)
Nineteen 19
as Hiroaki Kusano (voice)
1+2=Paradise
as Yūsuke Yamamoto (voice)
Samurai Pizza Cats
TVas Yattarou54 eps
Nadia: The Secret of Blue Water
TVas Hamahama (voice)39 eps
Hakkenden: Legend of the Dog Warriors
TVas Sosuke Inukawa (voice)13 eps
Record of Lodoss War
TVas Etoh (voice)13 eps
Devil Hunter Yohko
TVas Wakabayashi Osamu (voice)
1989
Kiki's Delivery Service
as Tombo (voice)
Ranma ½
TVas Ranma Saotome ♂ (voice)161 eps
Zenki
TVas Zenki (voice)51 eps

Social Media

Personal Info

Known For
Acting
Gender
Male
Birthday
5/23/1965(60 years old)
Place of Birth
Fukuoka, Fukuoka, Japan