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.
361 acting credits
Acting · 361
JUJUTSU KAISEN
2020
JoJo's Bizarre Adventure
2012
Hunter x Hunter
2011
One Piece
1999
The Ancient Magus' Bride
2017
Urusei Yatsura
2022
Ranma ½
1989
Death Note
2006
Detective Conan
1996
Yashahime: Princess Half-Demon
2020
InuYasha
2000
Cowboy Bebop
1998
BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense.
2020
Ranma1/2
2024
Claymore
2007
Vinland Saga
2019
The Gymnastics Samurai
2020
Nadia: The Secret of Blue Water
1990
Hakkenden: Legend of the Dog Warriors
1990
Super Dragon Ball Heroes
2018
Revolutionary Girl Utena
1997
Danganronpa: The Animation
2013
Yu-Gi-Oh! GX
2004
Baccano!
2007
Bakuage Sentai Boonboomger
2024
Train to the End of the World
2024
Hikonin Sentai Akibaranger
2012
The Twelve Kingdoms
2002
Sgt. Frog
2004
Tokusou Sentai Dekaranger
2004
Miss Shachiku and the Little Baby Ghost
2022
Peacemaker Kurogane
2003
Zenki
1995
Eyeshield 21
2005
Showa Genroku Rakugo Shinju
2016
Doubutsu Sentai Zyuohger
2016
ODDTAXI
2021
Lil' Red Riding Hood Cha-Cha
1994
Atashin'chi
2002
Mobile Fighter G Gundam
1994
The Law of Ueki
2005
Ressha Sentai ToQger
2014
Rin-ne
2015
Powerpuff Girls Z
2006
Samurai Pizza Cats
1990
RADIANT
2018
Giant Robo: The Day the Earth Stood Still
1992
Kiba
2006
Tensou Sentai Goseiger
2010
The Ancient Magus' Bride: The Boy from the West and the Knight of the Blue Storm
2021
PERSONA 4 the Animation
2011
Kiki's Delivery Service
1989
B'T X
1996
Magic Kaito 1412
2014
Wedding Peach
1995
PreCure Splash Star
2006
Android Kikaider
2000
Record of Lodoss War
1990
Pretty Guardian Sailor Moon
2003
Pecola
2001
Majikoi - Oh! Samurai Girls
2011
Detective Conan: The Phantom of Baker Street
2002
GeGeGe no Kitaro
2018
Our Home's Fox Deity
2012
Shadow Skill
1998
BUCCHIGIRI?!
2024
Baby and Me
1996
Battle Doll: Angelic Layer
2001
Genji Tsuushin Agedama
1991
Kamikaze Kaitou Jeanne
1999
Gravitation
2000
Please Save My Earth
1993
DearS
2004
Miracle Girls
1993
Betterman
1999
Ayakashi: Samurai Horror Tales
2006
Cyber Team in Akihabara
1998
Detective Conan: One-Eyed Flashback
2025
Slow Step
1991
One Outs
2008
Free Kick Toward Tomorrow
1992
Madara
1991
Stitch!
2008
Shippuu! Iron Leaguer
1993
Captain Tsubasa J
1994
Papuwa
2003
One Piece Film Red
2022
RG Veda
1991
Magi: Adventure of Sinbad
2014
Rampo Kitan: Game of Laplace
2015
CLAMP School Detectives
1997
Persona 4 The Golden Animation
2014
Flint: The Time Detective
1998
Monkey Typhoon
2002
Devil Hunter Yohko
1990
Mecha-Ude: Mechanical Arms
2024
Eden's Bowy
1999
Hanada Shounen-shi
2002
Detective Conan: Black Iron Submarine
2023
Ghastly Prince Enma Burning Up
2011
Detective Conan: Quarter of Silence
2011
Space Pirate Captain Herlock: Outside Legend - The Endless Odyssey
2002
Estab-Life: Great Escape
2022
Battle Angel
1993
Detective Conan: Captured in Her Eyes
2000
Detective Conan: The Million-Dollar Pentagram
2024
Neighborhood Story
1995
Case Closed: The Fourteenth Target
1998
Neo Angelique Abyss
2008
Detective Conan: Crossroad in the Ancient Capital
2003
Detective Conan: The Private Eyes' Requiem
2006
Freedom
2006
Detective Conan: Full Score of Fear
2008
Sister Princess
2001
The Boy and the Beast
2015
One Piece Characters Log
2016
Magic Kaito: Kid the Phantom Thief
2010
Red Baron
1994
Detective Conan: The Last Wizard of the Century
1999
Mechanical Marie
2025
Here Is Greenwood
1991
Jungle King Taa-chan
1993
Detective Conan: Private Eye in the Distant Sea
2013
Fire Emblem
1996
Detective Conan: Strategy Above the Depths
2005
Galaxy Warring State Chronicle Rai
1994
KO Century Beast Warriors
1992
One Piece Film: GOLD
2016
One Piece: Giant Mecha Soldier of Karakuri Castle
2006
Super Sentai Strongest Battle!!
2019
One Piece Film: Strong World
2009
Detective Conan: The Scarlet Bullet
2021
Detective Conan: Sunflowers of Inferno
2015
Mouse
2003
Makeruna!! Aku no Gundan!
2017
Tokyo Babylon
1992
Case Closed: The Crimson Love Letter
2017
Detective Conan: The Eleventh Striker
2012
Detective Conan: The Raven Chaser
2009
Valkyria Chronicles
2009
Detective Conan: Dimensional Sniper
2014
Case Closed: Countdown to Heaven
2001
One Piece: Clockwork Island Adventure
2001
Detective Conan: The Bride of Halloween
2022
Detective Conan: Jolly Roger in the Deep Azure
2007
One Piece Film: Z
2012
Detective Conan: The Lost Ship in the Sky
2010
Fancy Lala
1998
Detective Conan: The Time Bombed Skyscraper
1997
Armored Dragon Legend Villgust
1993
Space Academy
2021
One Piece: The Movie
2000
Yat, The Space Patrol
1996
Inuyasha the Movie: Affections Touching Across Time
2001
Death Note Relight 1: Visions of a God
2007
Detective Conan: The Darkest Nightmare
2016
Detective Conan: Magician of the Silver Sky
2004
Assassination Classroom the Movie: Our Time
2026
One Piece: The Desert Princess and the Pirates: Adventure in Alabasta
2007
Detective Conan: The Disappearance of Conan Edogawa - The Worst Two Days in History
2015
GinRei
1994
Detective Conan: Episode One - The Great Detective Turned Small
2017
Dream 9 Toriko x One Piece x Dragon Ball Z Super Collaboration Special!!
2013
One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends
2014
The Cockpit
1993
Battle Angel
1993
Angel's Feather
2006
Gintama: Yoshiwara in Flames
2026
One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom
2008
One Piece: Baron Omatsuri and the Secret Island
2005
Rizelmine
2002
Inuyasha the Movie 4: Fire on the Mystic Island
2004
Lupin the Third vs. Detective Conan: The Movie
2013
In Search of the Lost Future
2014
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991
Hunter x Hunter: Phantom Rouge
2013
Super Zugan
1992
One Piece: Chopper's Kingdom on the Island of Strange Animals
2002
One Piece: Dead End Adventure
2003
Inuyasha the Movie 3: Swords of an Honorable Ruler
2003
Death Note Relight 2: L's Successors
2009
Doki Doki School Hours
2004
Jungle de Ikou!
1997
One Piece: Episode of Skypiea
2018
Zetsuai 1989
1992
Dragon Knight 4: Wheel of Time
1998
One Piece: Stampede
2019
Inuyasha the Movie 2: The Castle Beyond the Looking Glass
2002
One Piece: Heart of Gold
2016
One Piece: Curse of the Sacred Sword
2004
Step Up Love Story
2002
Lupin the Third vs. Detective Conan
2009
Mighty Space Miners
1994
Escaflowne: The Movie
2000
Ayane's High Kick
1997
Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train
2023
Legend of the Dragon Kings
1991
Animal Crossing: The Movie
2006
Ranma 1/2 the Movie 2: Nihao My Concubine
1992
Yu-Gi-Oh! Bonds Beyond Time
2010
The Heroic Legend of Arslan: Age of Heroes
1991
Jewel BEM Hunter Lime
1996
One Piece 3D: Straw Hat Chase
2011
Pretty Cure All Stars DX3: Deliver the Future! The Rainbow-Colored Flower That Connects the World
2011
One Piece Episode of East Blue
2017
Case Closed: Zero the Enforcer
2018
Mazinger Z: Infinity
2017
Samurai X: The Motion Picture
1997
Asura
2012
Dead Leaves
2004
A Wind Named Amnesia
1990
Ressha Sentai ToQger vs. Kyoryuger: The Movie
2015
One Piece: Episode of Luffy - Hand Island Adventure
2012
One Piece Episode of Nami: Tears of a Navigator and the Bonds of Friends
2012
Pretty Cure All Stars DX2: The Light of Hope - Protect the Rainbow Jewel!
2010
A Tree of Palme
2002
One Piece: Adventure of Nebulandia
2015
One Piece: Romance Dawn Story
2008
The Adventures of Tyrano Boy
2015
One Piece Episode of Merry: The Tale of One More Friend
2013
Urotsukidōji II: Legend of the Demon Womb
1991
Gigant Big-Shot Tsukasa
2014
Space Battleship Yamato Resurrection
2009
Pretty Cure All Stars DX: Everyone Is a Friend - A Miracle All Pretty Cures Together
2009
Pokémon: Pikachu's Rescue Adventure
1999
Plastic Little: The Adventures of Captain Tita
1994
Go Nagai World
1991
Ranma 1/2: Team Ranma vs. the Legendary Phoenix
1994
One Piece Episode of Sabo: The Three Brothers' Bond - The Miraculous Reunion and the Inherited Will
2015
Sore Ike! Zukkoke Sannin-gumi
2004
One Piece Special: Protect! The Last Great Stage
2003
Kindaichi Case Files Movie 1: The Opera House Murders
1996
ODDTAXI in the Woods
2022
Gravitation: Lyrics of Love
1999
Gun Frontier
2002
Hanappe Bazooka
1992
Detective Conan vs. Kid the Phantom Thief
2024
Case Closed: The Fist of Blue Sapphire
2019
Delinquent in Drag
1992
Zyuden Sentai Kyoryuger vs. Go-Busters: The Great Dinosaur War
2014
Camp Pikachu
2002
Grappler Baki: The Ultimate Fighter
1994
Yona Yona Penguin
2009
航海王：和之国总集篇
2021
Detective Conan: The Scarlet School Trip
2019
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014
Chibi Maruko-chan
2019
Inferious Interplanetary War Chronicle - Condition Green
1991
One Piece Special: The Detective Memoirs of Chief Straw Hat Luffy
2005
Pretty Cure All Stars New Stage: Friends of the Future
2012
One Piece: Dream Soccer King!
2002
Coicent
2010
Atashin'chi: The 3D Movie
2010
Ressha Sentai ToQger The Movie: Galaxy Line S.O.S.
2014
Ressha Sentai ToQger Returns: Super ToQ #7 of Dreams
2015
Crows
1994
One Piece Film Gold: Episode 0
2016
Peacemaker Kurogane: Belief
2018
Eternal Family
1997
Mouse Story: The Adventures of George and Gerald
2007
Tatsuya Miyanishi Theatre: Heart and Yummie
2010
Ressha Sentai ToQger vs. Kamen Rider Gaim: Spring Break Combined Special
2014
Welcome to Lodoss Island!
1998
Ranma ½: Nightmare! Incense of Spring Sleep
2008
One Piece Special: Open Upon the Great Sea! A Father's Huge, HUGE Dream!
2003
Chibi Maruko-chan: My Favorite Song
1992
Samurider: Nazo no Tenkousei
1991
Alice in Wonderland –Dive in Wonderland–
2025
One Piece: Jango's Dance Carnival
2001
Blue Memories: Boys, Colonizing Manchuria and Mongolia
1993
Ultraman Super Fighter Legend
1996
Persona4 the ANIMATION -The Factor of Hope-
2012
Violence Jack: Hell's Wind
1990
Ressha Sentai ToQger Final Live Tour 2015
2015
Noiseman Sound Insect
1997
Futari wa Precure Splash☆Star the Movie: Tic-Tac Crisis Hanging by a Thin Thread!
2006
Butt Attack Punisher Girl Gautaman: The Birth of Gautaman
1994
Heart and Yummie
2010
Shuriken Sentai Ninninger vs. ToQger the Movie: Ninjas in Wonderland
2016
Tottoi
1992
TIGER & BUNNY: The Beginning
2012
Ryokunohara Labyrinth - Sparkling Phantom
1990
Tomcat's Big Adventure
2014
Super Sentai Strongest Battle Director's Cut
2019
Pichu & Pikachu's Winter Vacation 2001
2000
Butt Attack Punisher Girl Gautaman R: The Final Battle Between Love & Tragedy!
1994
Silent Mobius Gaiden: The End of the Edo Period
1993
Virgin Fleet
1998
Nineteen 19
1990
Magical Circle Guru Guru
1996
Dragon Quest - Emblem of Roto
1996
Desperate Love 1989
1992
Serena x One Piece: Sennyuu!! Sauzando Sunny-gou
2011
Engimon
2018
Pretty Guardian Sailor Moon: Act Zero
2005
One Piece: Glorious Island
2012
Urusei Yatsura: The Obstacle Course Swim Meet, It's a Rumic World: Urusei Yatsura
2008
Detective Conan: Black History
2007
One Piece: The Great Treasure of Tongari Island
2016
Boyfriend
1992
Pokémon Mystery Dungeon: Explorers of Time & Darkness
2007
Shadow Skill: Epilogue
1995
Tomorrow Will Be Better! Half a Sweet Potato
2005
Gosho Aoyama’s Collection of Short Stories
1999
Bondage Queen Kate
1994
It's a Rumic World: 50th Anniversary Weekly★Shonen Sunday
2008
Bronze: Zetsuai Since 1989
1996
Neighborhood Story The Movie
1996
The Heroic Legend of Arslan
1991
One Piece 3D: Gekisou! Trap Coaster
2011
One Piece Episode of Alabasta Prologue
2011
Kamiwaza Wanda
2017
Nagasaki 1945 ~ The Angelus Bells
2005
Trusty Ginjiro
1991
Luffy's Fall! The Unexplored Region - Grand Adventure in the Ocean's Navel
2000
Devil Hunter Yohko
1990
Baby Felix & Friends
2000
Tokyo Babylon 1
1992
Madara
1991
The Mighty Gin Rei
1994
Barefoot Gin Rei
1994
The Heroic Legend of Arslan II
1992
Unification of Japan Gaiden: Yamazaki Family — Joji and His Merry Friends
2024
Dragon Knight: Wheel of Time
1998
One Piece - En route vers l'épisode 1000
2021
Futari wa Precure Splash☆Star: Maji Doki Theater
2006
Shadow Skill: The Movie
1996
Detective Conan: The 17-Year-Old Truth
2025
Ressha Sentai ToQger DVD Special: Farewell, Ticket! The Wasteland Super ToQ Battle!
2014
Pretty Guardian Sailor Moon Special Act: We're Getting Married!！
2004
Netrun-mon the Movie
2004
K.O. Beast
1992
BEAT RUNNERS
2026
Giant Robo: The Day the Earth Stood Still
1992
Appleland Story
1992
Teppen
1996
My Dread is School! Kanako Inuki Shout Collection
1999
Bonobono: Secret of the Kumomo Tree
2002
Dragon Slayer
1992
Okaeri: Furusato no Karatsu
2017
Kishin Douji Zenki Gaiden: Anki Kitan
1997
VISUALIVE Persona 4
2012
Tokyo Babylon 2
1994
One Piece: The Adventure in Grand Line
2002
Detective Conan Magic File
2007
Stage Play 「Spooky Kitaro」
2025
Conan vs. Kaito Kid
1997
1+2=Paradise
1990
Urotsukidōji IV - The Infernal Road
1991
『ONE PIECE』魚人島編
2024
La Blue Girl: Climax Taizen
2002
La Blue Girl
1992
Dragon Knight: Wheel of Time
1998
Bondage Queen Kate
1994
The Legend of Lyon: Flare
1986
Can Can Bunny Extra
1996
Lady Blue
1996
Reinou Tantei Miko: Phantom Hunter Miko
2000
Viper GTS
2002
Viper GTS
2002
Twin Angels
1994