Kappei Yamaguchi
Acting
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.
Born: May 23, 1965 · Fukuoka, Fukuoka, Japan
Filmography (255)
TV
Mechanical Marie
2025
Actor: Carl Ojisan (voice…
Detective Conan: One-Eyed Flashback
2025
Actor: Shinichi Kudo (voi…
TV
Ranma1/2
2024
Actor: Ranma Saotome (voi…
TV
Mecha-Ude: Mechanical Arms
2024
Actor: Yakumo (voice)
Detective Conan: The Million-Dollar Pentagram
2024
Actor: Kaito Kid / Shinic…
TV
Train to the End of the World
2024
Actor: Shizuru's father (…
TV
Bakuage Sentai Boonboomger
2024
Actor: Ticket (voice)
TV
BUCCHIGIRI?!
2024
Actor: Komao (voice)
Detective Conan vs. Kid the Phantom Thief
2024
Actor: Kaito Kuroba / Kai…
Detective Conan: Black Iron Submarine
2023
Actor: Shinichi Kudou (vo…
Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train
2023
Actor: Kaito Kuroba (voic…
TV
Urusei Yatsura
2022
Actor: Saizo (voice)Actor: Tsuyuo (voice)+1
One Piece Film Red
2022
Actor: Usopp (voice)
Detective Conan: The Bride of Halloween
2022
Actor: Shinichi Kudo (voi…
TV
Miss Shachiku and the Little Baby Ghost
2022
Actor: "Cute" Voiceover o…
TV
Estab-Life: Great Escape
2022
Actor: Mikhail (voice)
ODDTAXI in the Woods
2022
Actor: Eiji Kakihana (voi…
One Piece - En route vers l'épisode 1000
2021
Actor: Comédien de doubla…
TV
The Ancient Magus' Bride: The Boy from the West and the Knight of the Blue Storm
2021
Actor: Oberon (voice)
Detective Conan: The Scarlet Bullet
2021
Actor: Shinichi Kudo (voi…
TV
Space Academy
2021
Actor: Jii-chan (voice)
TV
ODDTAXI
2021
Actor: Eiji Kakihana (voi…
TV
The Gymnastics Samurai
2020
Actor: Bigbird Aragaki (v…
TV
JUJUTSU KAISEN
2020
Actor: Kechizu (voice)
TV
Yashahime: Princess Half-Demon
2020
Actor: Inuyasha (voice)
TV
BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense.
2020
Actor: Shin (voice)
TV
Vinland Saga
2019
Actor: Jabbathe (voice)
Case Closed: The Fist of Blue Sapphire
2019
Actor: Shinichi Kudo / Ka…
TV
Super Sentai Strongest Battle!!
2019
Actor: ToQger Arsenal (vo…
One Piece: Stampede
2019
Actor: Usopp (voice)
TV
RADIANT
2018
Actor: Master Lord Majest…
One Piece: Episode of Skypiea
2018
Actor: Usopp (voice)
TV
Super Dragon Ball Heroes
2018
Actor: Fu (voice)
Case Closed: Zero the Enforcer
2018
Actor: Shinichi Kudo / Ka…
TV
GeGeGe no Kitaro
2018
Actor: Ittan Momen
One Piece Episode of East Blue
2017
Actor: Usopp (voice)
Mazinger Z: Infinity
2017
Actor: Mucha (voice)
TV
The Ancient Magus' Bride
2017
Actor: Oberon (voice)
Case Closed: The Crimson Love Letter
2017
Actor: Shinichi Kudo (voi…
Detective Conan: Episode One - The Great Detective Turned Small
2017
Actor: Shinichi Kudo (voi…
One Piece: Heart of Gold
2016
Actor: Usopp (voice)
One Piece Film: GOLD
2016
Actor: Usopp (voice)
One Piece Film Gold: Episode 0
2016
Actor: Usopp (voice)
TV
One Piece Characters Log
2016
Actor: Usopp
Detective Conan: The Darkest Nightmare
2016
Actor: Shinichi Kudo (voi…
TV
Doubutsu Sentai Zyuohger
2016
Actor: Illusion (voice)
TV
Showa Genroku Rakugo Shinju
2016
Actor: Amaken (voice)
One Piece: Adventure of Nebulandia
2015
Actor: Usopp (voice)
One Piece Episode of Sabo: The Three Brothers' Bond - The Miraculous Reunion and the Inherited Will
2015
Actor: Usopp (voice)
The Boy and the Beast
2015
Actor: Teenage Jiromaru (…
TV
Rampo Kitan: Game of Laplace
2015
Actor: Shitai-kun (voice)
Ressha Sentai ToQger Returns: Super ToQ #7 of Dreams
2015
Actor: Ticket (voice)
The Adventures of Tyrano Boy
2015
Actor: Zesta (voice)
Detective Conan: Sunflowers of Inferno
2015
Actor: Shinichi Kudo / Ka…
TV
Rin-ne
2015
Actor: Sabato Rokudou
Ressha Sentai ToQger vs. Kyoryuger: The Movie
2015
Actor: Ticket (voice)
One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends
2014
Actor: Usopp (voice)
The Disappearance of Conan Edogawa: The Worst Two Days in History
2014
Actor: Shinichi Kudo (voi…
TV
Magic Kaito 1412
2014
Actor: Kaito Kuroba / Shi…
TV
In Search of the Lost Future
2014
Actor: Osafune Kenny Eita…
TV
Persona 4 The Golden Animation
2014
Actor: Teddie (voice)
TV
Magi: Adventure of Sinbad (OVA)
2014
Actor: Valefor (voice)
Detective Conan: Dimensional Sniper
2014
Actor: Shinichi Kudo (voi…
Ressha Sentai ToQger vs. Kamen Rider Gaim: Spring Break Combined Special
2014
Actor: Ticket / ToQger Eq…
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014
Actor: ToQger Equipment V…
TV
Ressha Sentai ToQger
2014
Actor: Ticket (voice)
Zyuden Sentai Kyoryuger vs. Go-Busters: The Great Dinosaur War
2014
Actor: ToQger equipment (…
One Piece Episode of Merry: The Tale of One More Friend
2013
Actor: Usopp (voice)
Lupin the Third vs. Detective Conan: The Movie
2013
Actor: Shinichi Kudo / Ka…
TV
Danganronpa: The Animation
2013
Actor: Hifumi Yamada (voi…
Detective Conan: Private Eye in the Distant Sea
2013
Actor: Shinichi Kudo (voi…
Dream 9 Toriko x One Piece x Dragon Ball Z Super Collaboration Special!!
2013
Actor: Usopp (voice)
Hunter x Hunter: Phantom Rouge
2013
Actor: Feitan (voice)
One Piece: Glorious Island
2012
Actor: Usopp (voice)
One Piece: Episode of Luffy - Hand Island Adventure
2012
Actor: Usopp (voice)
One Piece Film: Z
2012
Actor: Usopp (voice)
TV
JoJo's Bizarre Adventure
2012
Actor: Shigechi (voice)
Asura
2012
Actor
TIGER & BUNNY: The Beginning
2012
Actor: Robin Baxter (voic…
One Piece Episode of Nami: Tears of a Navigator and the Bonds of Friends
2012
Actor: Usopp (voice)
TV
Our Home's Fox Deity
2012
Actor
Detective Conan: The Eleventh Striker
2012
Actor: Shinichi Kudo (voi…
TV
Hikonin Sentai Akibaranger
2012
Actor: Chief Editor HVD (…Actor: Chief Clerk Blu-Ra…
Pretty Cure All Stars New Stage: Friends of the Future
2012
Actor: Flappy
One Piece 3D: Gekisou! Trap Coaster
2011
Actor: Usopp (voice)
TV
PERSONA 4 the Animation
2011
Actor: Teddie (voice)
TV
Majikoi - Oh! Samurai Girls
2011
Actor: Ikuro Fukumoto (vo…
TV
Hunter x Hunter
2011
Actor: Feitan (voice)
One Piece Episode of Alabasta Prologue
2011
Actor: Usopp (voice)
Detective Conan: Quarter of Silence
2011
Actor: Shinichi Kudo (voi…
TV
Ghastly Prince Enma Burning Up
2011
Actor
One Piece 3D: Straw Hat Chase
2011
Actor: Usopp (voice)
Pretty Cure All Stars DX3: Deliver the Future! The Rainbow-Colored Flower That Connects the World
2011
Actor: Flappy
Heart and Yummie
2010
Actor: Heart (voice)
Detective Conan: The Lost Ship in the Sky
2010
Actor: Shinichi Kudo / Ka…
TV
Magic Kaito: Kid the Phantom Thief
2010
Actor: Kaito Kuroba / Kai…
Pretty Cure All Stars DX2: The Light of Hope - Protect the Rainbow Jewel!
2010
Actor: Flappy (voice)
TV
Tensou Sentai Goseiger
2010
Actor: Ain-I of the Neutr…
Yu-Gi-Oh! Bonds Beyond Time
2010
Actor: Daitokuji (voice)
Yona Yona Penguin
2009
Actor: Mulmul (voice)
One Piece Film: Strong World
2009
Actor: Usopp (voice)
Space Battleship Yamato Resurrection
2009
Actor: Ryohei Nakanishi (…
Death Note Relight 2: L's Successors
2009
Actor: L (voice)
Detective Conan: The Raven Chaser
2009
Actor: Shinichi Kudo (voi…
TV
Valkyria Chronicles
2009
Actor
Lupin the Third vs. Detective Conan
2009
Actor: Shinichi Kudo (voi…
Pretty Cure All Stars DX: Everyone Is a Friend - A Miracle All Pretty Cures Together
2009
Actor: Flappy
Urusei Yatsura: The Obstacle Course Swim Meet, It's a Rumic World: Urusei Yatsura
2008
Actor: (voice)
TV
Stitch!
2008
Actor: Kijimuna
TV
One Outs
2008
Actor: Satoshi Ideguchi (…
One Piece: Romance Dawn Story
2008
Actor: Usopp (voice)
Detective Conan: Full Score of Fear
2008
Actor: Shinichi Kudo (voi…
TV
Neo Angelique Abyss
2008
Actor: Rune
One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom
2008
Actor: Usopp (voice)
Death Note Relight 1: Visions of a God
2007
Actor: L (voice)
TV
Baccano!
2007
Actor: Chic Jefferson (vo…
Detective Conan: Jolly Roger in the Deep Azure
2007
Actor: Shin'ichi Kudo (vo…
TV
Claymore
2007
Actor: Male 'Awakened' 3 …
One Piece: The Desert Princess and the Pirates: Adventure in Alabasta
2007
Actor: Usopp / Lashes (vo…
Animal Crossing: The Movie
2006
Actor: Fûta (voice)
Futari wa Precure Splash☆Star the Movie: Tic-Tac Crisis Hanging by a Thin Thread!
2006
Actor: Flappy (voice)
TV
Freedom
2006
Actor
TV
Death Note
2006
Actor: L (voice)
TV
Powerpuff Girls Z
2006
Actor
Detective Conan: The Private Eyes' Requiem
2006
Actor: Shinichi Kudo (voi…
TV
Kiba
2006
Actor: Hugh (voice)
One Piece: Giant Mecha Soldier of Karakuri Castle
2006
Actor: Usopp (voice)
TV
PreCure Splash Star
2006
Actor: Flappy (voice)
TV
Ayakashi: Samurai Horror Tales
2006
Actor: Kaikaimaru (voice)
One Piece Special: The Detective Memoirs of Chief Straw Hat Luffy
2005
Actor: Usopp (voice)
Detective Conan: Strategy Above the Depths
2005
Actor: Shinichi Kudou (vo…
TV
Eyeshield 21
2005
Actor: Raimon Tarou
TV
The Law of Ueki
2005
Actor: Hideyoshi Soya (vo…
One Piece: Baron Omatsuri and the Secret Island
2005
Actor: Usopp (voice)
Inuyasha the Movie 4: Fire on the Mystic Island
2004
Actor: Inuyasha (voice)
TV
Yu-Gi-Oh! GX
2004
Actor: Professor Daitokuj…
TV
DearS
2004
Actor: 及川彦郎（配音）
Detective Conan: Magician of the Silver Sky
2004
Actor: Kaito Kid / Shinic…
TV
Doki Doki School Hours
2004
Actor: Kenta Suetake
TV
Sgt. Frog
2004
Actor: Tororo
One Piece: Curse of the Sacred Sword
2004
Actor: Usopp (voice)
TV
Tokusou Sentai Dekaranger
2004
Actor: Thousanian Gineka …
Dead Leaves
2004
Actor: Retro (voice)
Inuyasha the Movie 3: Swords of an Honorable Ruler
2003
Actor: Inuyasha (voice)
One Piece Special: Protect! The Last Great Stage
2003
Actor: Usopp (voice)
TV
Peacemaker
2003
Actor: Shinpachi Nagakura…
TV
Pretty Guardian Sailor Moon
2003
Actor: Artemis (voice)
TV
Papuwa
2003
Actor: Dr. GunmaActor: Chappy
Detective Conan: Crossroad in the Ancient Capital
2003
Actor: Shinichi Kudo (voi…
One Piece Special: Open Upon the Great Sea! A Father's Huge, HUGE Dream!
2003
Actor: Usopp (voice)
One Piece: Dead End Adventure
2003
Actor: Usopp (voice)
TV
Mouse
2003
Actor: Sorata Muon (voice…
TV
Viper GTS
2002
Actor: Ogawa (voice)
Inuyasha the Movie 2: The Castle Beyond the Looking Glass
2002
Actor: Inuyasha (voice)
TV
Space Pirate Captain Herlock: Outside Legend - The Endless Odyssey
2002
Actor: Tochiro (voice)
TV
Hanada Shounen-shi
2002
Actor: Haruhiko (voice)
TV
Monkey Typhoon
2002
Actor: Goku (voice)
TV
Step Up Love Story
2002
Actor
Camp Pikachu
2002
Actor: Barubeat (voice)
Detective Conan: The Phantom of Baker Street
2002
Actor: Shinichi Kudo (voi…
TV
Atashin'chi
2002
Actor: Fujino (voice)
TV
The Twelve Kingdoms
2002
Actor: Rokuta (voice)
TV
Rizelmine
2002
Actor: Tomonori Iwaki
TV
Gun Frontier
2002
Actor
A Tree of Palme
2002
Actor: Roualt (voice)
One Piece: Dream Soccer King!
2002
Actor: Usopp (voice)
One Piece: Chopper's Kingdom on the Island of Strange Animals
2002
Actor: Usopp (voice)
Inuyasha the Movie: Affections Touching Across Time
2001
Actor: Inuyasha (voice)
TV
Pecola
2001
Actor: Bashatt
Case Closed: Countdown to Heaven
2001
Actor: Shinichi Kudo (voi…
TV
Sister Princess
2001
Actor
TV
Battle Doll: Angelic Layer
2001
Actor
One Piece: Clockwork Island Adventure
2001
Actor: Usopp (voice)
One Piece: Jango's Dance Carnival
2001
Actor: Usopp (voice)
Luffy's Fall! The Unexplored Region - Grand Adventure in the Ocean's Navel
2000
Actor: Usopp (voice)
TV
Android Kikaider
2000
Actor: Saburo Kazeda (voi…
TV
InuYasha
2000
Actor: InuYasha (voice)
TV
Gravitation
2000
Actor: Ryuichi Sakuma (vo…
Escaflowne: The Movie
2000
Actor: Shesta (voice)
Detective Conan: Captured in Her Eyes
2000
Actor: Shinichi Kudo (voi…
One Piece: The Movie
2000
Actor: Usopp (voice)
TV
One Piece
1999
Actor: Usopp (voice)
Pokémon: Pikachu's Rescue Adventure
1999
Actor: Parasect (voice)
Detective Conan: The Last Wizard of the Century
1999
Actor: Shinichi Kudo / Ka…
TV
Eden's Bowy
1999
Actor: Jorrne
TV
Betterman
1999
Actor: Keita Aono (voice)
TV
Kamikaze Kaitou Jeanne
1999
Actor: Noin Claude
TV
Flint: The Time Detective
1998
Actor: Kyoichiro Narugami
TV
Shadow Skill
1998
Actor: Low (voice)
Case Closed: The Fourteenth Target
1998
Actor: Shinichi Kudo (voi…
TV
Fancy Lala
1998
Actor: Taro Yoshida (voic…
TV
Cyber Team in Akihabara
1998
Actor: Crane Bahnsteik (v…
TV
Cowboy Bebop
1998
Actor: Rhint (voice)
Rurouni Kenshin: Requiem for the Ishin Patriots
1997
Actor: Yasuharu Musashino
Noiseman Sound Insect
1997
Actor: Manabu (voice)
TV
CLAMP School Detectives
1997
Actor: (voice)
Detective Conan: The Time Bombed Skyscraper
1997
Actor: Shinichi Kudo (voi…
TV
Revolutionary Girl Utena
1997
Actor: Shiori's boyfriend…
TV
Jungle de Ikou!
1997
Actor: Takuma (voice)
TV
Ayane's High Kick
1997
Actor: Kappei Inagaki (vo…
Kindaichi Case Files Movie 1: The Opera House Murders
1996
Actor: Hajime Kindaichi (…
Bronze: Zetsuai Since 1989
1996
Actor: Shibuya (voice)
TV
Baby and Me
1996
Actor: Takuya Enoki (voic…
TV
B'T X
1996
Actor: Camilla (voice)
TV
Fire Emblem
1996
Actor: Julian (voice)
TV
Detective Conan
1996
Actor: Jimmy KudoActor: Shinichi Kudo (voi…
Shadow Skill: Epilogue
1995
Actor: Scrib Lowengren (v…
TV
Neighborhood Story
1995
Actor: Tsutomu Yamaguchi …
TV
Wedding Peach
1995
Actor: Takuro Amano
TV
Zenki
1995
Actor: Zenki (voice)
TV
Captain Tsubasa J
1994
Actor: Ryou Ishizaki (voi…
Grappler Baki: The Ultimate Fighter
1994
Actor: Baki Hanma
Ranma 1/2: Team Ranma vs. the Legendary Phoenix
1994
Actor: Ranma Saotome ♂ (v…
Butt Attack Punisher Girl Gautaman: The Birth of Gautaman
1994
Actor: Shibuya (voice)
TV
Mobile Fighter G Gundam
1994
Actor: Sai Saici (voice)
TV
Galaxy Warring State Chronicle Rai
1994
Actor: (voice)
TV
Red Baron
1994
Actor: Ken KurenaiActor: Fake Ken
Plastic Little: The Adventures of Captain Tita
1994
Actor: Nicole (voice)
TV
Lil' Red Riding Hood Cha-Cha
1994
Actor
TV
Please Save My Earth
1993
Actor: Hirohiko Kazama (v…
TV
The Cockpit
1993
Actor: Soldier Utsunomiya…
TV
Jungle King Taa-chan
1993
Actor: Etekichi
Battle Angel
1993
Actor: Yūgo (voice)
TV
Battle Angel
1993
Actor: Yugo (voice)
TV
Shippuu! Iron Leaguer
1993
Actor: Kiwami Juurouta
TV
Miracle Girls
1993
Actor: Yuuya Noda (voice)
TV
Tokyo Babylon
1992
Actor: Subaru Sumeragi (v…
TV
Dragon Slayer
1992
Actor
Hanappe Bazooka
1992
Actor: Hanahei Yamada (vo…
Delinquent in Drag
1992
Actor: Suke Banji (voice)
Ranma 1/2 the Movie 2: Nihao My Concubine
1992
Actor: Ranma Saotome ♂ (v…
Desperate Love 1989
1992
Actor: Katsumi Shibuya (v…
TV
Giant Robo: The Day the Earth Stood Still
1992
Actor: Daisaku Kusama
Giant Robo: The Day the Earth Stood Still
1992
Actor: Daisaku Kusama
TV
La Blue Girl
1992
Actor: Nin-Nin (voice)
TV
KO Century Beast Warriors
1992
Actor: Wan Dababatta
TV
Free Kick Toward Tomorrow
1992
Actor: Toto (voice)
Tottoi
1992
Actor: Billia (voice)
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991
Actor: Ranma Saotome ♂ (v…
TV
Genji Tsuushin Agedama
1991
Actor: Hikari Yumenokōji …
TV
The Heroic Legend of Arslan: Age of Heroes
1991
Actor: Arslan (voice)
Urotsukidōji II: Legend of the Demon Womb
1991
Actor: Young Munchausen I…
TV
RG Veda
1991
Actor: Ryū-ō (voice)
TV
Slow Step
1991
Actor: Akiba Shuu
TV
Madara
1991
Actor: Madara (voice)
A Wind Named Amnesia
1990
Actor: Johnny (voice)
Violence Jack: Hell's Wind
1990
Actor: Saburo Tenma
TV
Devil Hunter Yohko
1990
Actor: Wakabayashi Osamu …
TV
Hakkenden: Legend of the Dog Warriors
1990
Actor: Sosuke Inukawa (vo…
TV
Record of Lodoss War
1990
Actor: Etoh (voice)
TV
Nadia: The Secret of Blue Water
1990
Actor: Hamahama (voice)
TV
1+2=Paradise
1990
Actor: Yūsuke Yamamoto
TV
Samurai Pizza Cats
1990
Actor: Yattarou
Kiki's Delivery Service
1989
Actor: Tombo (voice)
TV
Ranma ½
1989
Actor: Ranma SaotomeActor: Ranma Saotome ♂ (v…