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), 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.
Known For
One Piece Film Red
(2022)
Usopp (voice)
Dream 9 Toriko & One Piece & Dragon Ball Z Super Collaboration Special!!
(2013)
Usopp (voice)
One Piece: Episode of Skypiea
(2018)
Usopp (voice)
One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends
(2014)
Usopp (voice)
Kiki's Delivery Service
(1989)
Tombo (voice)
One Piece Film: GOLD
(2016)
Usopp (voice)
Hunter x Hunter: Phantom Rouge
(2013)
Feitan (voice)
One Piece Film: Z
(2012)
Usopp (voice)
One Piece: Adventure of Nebulandia
(2015)
Usopp (voice)
One Piece: Curse of the Sacred Sword
(2004)
Usopp (voice)
Mazinger Z: Infinity
(2017)
Mucha (voice)
One Piece: Clockwork Island Adventure
(2001)
Usopp (voice)
Case Closed: The Million-Dollar Pentagram
(2024)
Kaito Kid / Shinichi Kudou (voice)
One Piece: Baron Omatsuri and the Secret Island
(2005)
Usopp (voice)
Detective Conan: Black Iron Submarine
(2023)
Shinichi Kudou (voice)
Detective Conan: Magician of the Silver Sky
(2004)
Kaito Kid / Shinichi Kudou (voice)
Full Filmography
Acting
Kiki's Delivery Service
(1989)
Tombo (voice)
A Wind Named Amnesia
(1990)
Johnny
Violence Jack: Hell's Wind
(1990)
Saburo Tenma
Devil Hunter Yohko
(1990)
Chibi Maruko-chan
(1990)
Kenichi Oono (voice)
Nineteen 19
(1990)
Hiroaki Kusano (voice)
Ryokunohara Labyrinth - Sparkling Phantom
(1990)
Kanata Tokino
Madara
(1991)
(voice)
Urotsukidōji II: Legend of the Demon Womb
(1991)
Young Munchausen II (voice)
Ranma ½: The Movie — The Battle of Nekonron: The Fight to Break the Rules!
(1991)
Ranma Saotome ♂ (voice)
Inferious Interplanetary War Chronicle - Condition Green
(1991)
Oscar Cloud (voice)
K.O. Beast
(1992)
Appleland Story
(1992)
Virgil
Giant Robo: The Day the Earth Stood Still
(1992)
Daisaku Kusama
Tottoi
(1992)
Billia (voice)
Desperate Love
(1992)
Katsumi Shibuya (voice)
Chibi Maruko-chan: My Favorite Song
(1992)
Kenichi Oono (voice)
Boyfriend
(1992)
Ougi (voice)
Ranma ½: The Movie 2 — The Battle of Togenkyo: Rescue the Brides!
(1992)
Ranma Saotome ♂ (voice)
Delinquent in Drag
(1992)
Suke Banji
Hanappe Bazooka
(1992)
Hanappe Yamada (voice)
Battle Angel
(1993)
Yūgo (voice)
Please Save My Earth
(1993)
Hirohiko Kazama (voice)
Silent Mobius Gaiden -Bakumatsu Dark Woman Disposition-
(1993)
Plastic Little: The Adventures of Captain Tita
(1994)
Nicole
Grappler Baki: The Ultimate Fighter
(1994)
Baki Hanma
Barefoot Gin Rei
(1994)
Daisaku Kusama (voice)
Ranma ½: The Movie 3 — The Super Non-Discriminatory Showdown: Team Ranma vs. the Legendary Phoenix
(1994)
Ranma Saotome ♂ (voice)
The Mighty Gin Rei
(1994)
Daisaku Kusama (voice)
Crows
(1994)
Shadow Skill: Epilogue
(1995)
Scrib Lowengren (voice)
Magical Circle Guru Guru
(1996)
Kindaichi Case Files Movie 1: The Opera House Murders
(1996)
Hajime Kindaichi (Voice)
Bronze: Zetsuai Since 1989
(1996)
Shibuya (voice)
Shadow Skill: The Movie
(1996)
Scrib Lowengren
Neighborhood Story The Movie
(1996)
Tsutomu Yamaguchi (voice)
Detective Conan: The Time Bombed Skyscraper
(1997)
Shinichi Kudo (voice)
Rurouni Kenshin: Requiem for the Ishin Patriots
(1997)
Yasuharu Musashino
Eternal Family
(1997)
Sasuke (voice)
Kishin Douji Zenki Gaiden: Anki Kitan
(1997)
Zenki
Noiseman Sound Insect
(1997)
Manabu (voice)
Case Closed: The Fourteenth Target
(1998)
Shinichi Kudo (voice)
Virgin Fleet
(1998)
Sada
Dragon Knight: Wheel of Time
(1998)
Kakeru
Welcome to Lodoss Island!
(1998)
Etoh (voice)
Detective Conan: The Last Wizard of the Century
(1999)
Shinichi Kudo / Kaito Kuroba (voice)
Pokémon: Pikachu's Rescue Adventure
(1999)
Parasect (voice)
Gosho Aoyama’s Collection of Short Stories
(1999)
Detective Conan: Captured in Her Eyes
(2000)
Shinichi Kudo (voice)
Escaflowne: The Movie
(2000)
Shesta (voice)
One Piece: The Movie
(2000)
Usopp (voice)
Pichu & Pikachu's Winter Vacation 2001
(2000)
Delibird (voice)
Baby Felix & Friends
(2000)
Poindexter
Luffy's Fall! The Unexplored Region - Grand Adventure in the Ocean's Navel
(2000)
Usopp (voice)
One Piece: Clockwork Island Adventure
(2001)
Usopp (voice)
Inuyasha the Movie: Affections Touching Across Time
(2001)
Inuyasha
One Piece: Jango's Dance Carnival
(2001)
Usopp
Case Closed: Countdown to Heaven
(2001)
Shinichi Kudo (voice)
A Tree of Palme
(2002)
Roualt (voice)
One Piece: Dream Soccer King!
(2002)
Usopp
Detective Conan: The Phantom of Baker Street
(2002)
Shinichi Kudo (voice)
Bonobono: Secret of the Kumomo Tree
(2002)
Araiguma-kun
One Piece: Chopper's Kingdom on the Island of Strange Animals
(2002)
Usopp (voice)
Camp Pikachu
(2002)
Barubeat (voice)
Inuyasha the Movie 2: The Castle Beyond the Looking Glass
(2002)
Inuyasha
La Blue Girl: Climax Taizan
(2002)
Nin-Nin
Inuyasha the Movie 3: Swords of an Honorable Ruler
(2003)
Inuyasha
Detective Conan: Crossroad in the Ancient Capital
(2003)
Shinichi Kudo (voice)
One Piece: Dead End Adventure
(2003)
Usopp (voice)
One Piece Special: Open Upon the Great Sea! A Father's Huge, HUGE Dream!
(2003)
Usopp (voice)
One Piece Special: Protect! The Last Great Stage
(2003)
Usopp (voice)
Inuyasha the Movie 4: Fire on the Mystic Island
(2004)
Inuyasha
Dead Leaves
(2004)
Retro (voice)
Pretty Guardian Sailor Moon Special Act: We're Getting Married!！
(2004)
Detective Conan: Magician of the Silver Sky
(2004)
Kaito Kid / Shinichi Kudou (voice)
One Piece: Curse of the Sacred Sword
(2004)
Usopp (voice)
One Piece: Baron Omatsuri and the Secret Island
(2005)
Usopp (voice)
Pretty Guardian Sailor Moon: Act Zero
(2005)
Detective Conan: Strategy Above the Depths
(2005)
Shinichi Kudou (voice)
Tomorrow I'll be Lively ~Half Sweet Potato~
(2005)
Nagasaki 1945 ~ The Angelus Bells
(2005)
One Piece Special: The Detective Memoirs of Chief Straw Hat Luffy
(2005)
Usopp (voice)
Futari wa Precure Splash☆Star Tic-Tac Crisis Hanging by a Thin Thread!
(2006)
Flappy
Animal Crossing: The Movie
(2006)
Fûta (voice)
Futari wa Precure Splash Star: Maji Doki Theater
(2006)
Flappy (voice)
One Piece: Giant Mecha Soldier of Karakuri Castle
(2006)
Usopp (voice)
Detective Conan: The Private Eyes' Requiem
(2006)
Shinichi Kudo (voice) / Kaito Kuroba (voice)
One Piece: The Desert Princess and the Pirates: Adventure in Alabasta
(2007)
Usopp (voice)
Death Note Relight 1: Visions of a God
(2007)
L (voice)
Mouse Story: The Adventures of George and Gerald
(2007)
Chamberlain
Detective Conan: Jolly Roger in the Deep Azure
(2007)
Shin'ichi Kudo (voice)
Pokémon Mystery Dungeon: Explorers of Time & Darkness
(2007)
Chimchar (voice)
One Piece: Episode of Alabasta - Prologue
(2007)
Usopp (voice)
One Piece: Romance Dawn Story
(2008)
Usopp (voice)
Urusei Yatsura: The Obstacle Course Swim Meet, It's a Rumic World: Urusei Yatsura
(2008)
(voice)
It's a Rumic World: 50th Anniversary Weekly★Shonen Sunday
(2008)
Inuyasha / Ranma Saotome (voice)
Ranma ½ Nightmare! Incense of Spring Sleep
(2008)
One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom
(2008)
Usopp (voice)
Detective Conan: Full Score of Fear
(2008)
Shinichi Kudo (voice)
Detective Conan Magic File 2: Shinichi Kudo, The Case of the Mysterious Wall and the Black Lab
(2008)
主演
Detective Conan: The Raven Chaser
(2009)
Shinichi Kudo (voice)
One Piece: Strong World
(2009)
Usopp (voice)
Space Battleship Yamato Resurrection
(2009)
Ryohei Nakanishi
Death Note Relight 2: L's Successors
(2009)
L (voice)
Yona Yona Penguin
(2009)
Mulmul (voice)
Pretty Cure All Stars DX: Everyone Is a Friend - A Miracle All Pretty Cures Together
(2009)
Flappy
Lupin the Third vs. Detective Conan
(2009)
Shinichi Kudo (voice)
Heart and Yummie
(2010)
Heart (voice)
Yu-Gi-Oh!: Bonds Beyond Time
(2010)
Daitokuji (voice)
Atashin'chi: The 3D Movie
(2010)
Fujino (voice)
Detective Conan: The Lost Ship in the Sky
(2010)
Shinichi Kudo / Kaito Kid (voice)
Pretty Cure All Stars DX2: The Light of Hope - Protect the Rainbow Jewel!
(2010)
Flappy (voice)
Coicent
(2010)
White Deer (voice)
Detective Conan OVA 10: Kid in Trap Island
(2010)
Kaito Kid / Kaito Kuroba
One Piece 3D: Straw Hat Chase
(2011)
Usopp (voice)
Pretty Cure All Stars DX3: Deliver the Future! The Rainbow-Colored Flower That Connects the World
(2011)
Flappy
Detective Conan: Quarter of Silence
(2011)
Shinichi Kudo (voice)
One Piece 3D: Gekisou! Trap Coaster
(2011)
Usopp (voice)
Detective Conan: The Eleventh Striker
(2012)
Shinichi Kudo (voice)
One Piece: Episode of Luffy - Hand Island Adventure
(2012)
Usopp (voice)
PERSONA4 the Animation -The Factor of Hope-
(2012)
Kuma
One Piece Film: Z
(2012)
Usopp (voice)
One Piece Episode of Nami: Tears of a Navigator and the Bonds of Friends
(2012)
Usopp (voice)
Pretty Cure All Stars New Stage: Friends of the Future
(2012)
Flappy
Tiger & Bunny: The Beginning
(2012)
Robin Baxter (voice)
Asura
(2012)
One Piece: Glorious Island
(2012)
Usopp (voice)
Detective Conan: Private Eye in the Distant Sea
(2013)
Shinichi Kudo (voice)
One Piece Episode of Merry: The Tale of One More Friend
(2013)
Usopp
Hunter x Hunter: Phantom Rouge
(2013)
Feitan (voice)
Lupin the Third vs. Detective Conan: The Movie
(2013)
Shinichi Kudo / Kaito Kuroba (voice)
Dream 9 Toriko & One Piece & Dragon Ball Z Super Collaboration Special!!
(2013)
Usopp (voice)
Ressha Sentai ToQger vs. Kamen Rider Gaim: Spring Break Combined Special
(2014)
Ticket / ToQger Equipment (voice)
Detective Conan: Dimensional Sniper
(2014)
Shinichi Kudo (voice)
Ressha Sentai ToQger The Movie: Galaxy Line S.O.S.
(2014)
Ticket / ToQger Equipment / Narrator (voice)
The Disappearance of Conan Edogawa: The Worst Two Days in History
(2014)
Shinichi Kudo (voice)
Zyuden Sentai Kyoryuger vs. Go-Busters: The Great Dinosaur War
(2014)
ToQger equipment (voice)
Tomcat's Big Adventure
(2014)
Michael (voice)
Ressha Sentai ToQger DVD Special: Farewell, Ticket! The Wasteland Super ToQ Battle!
(2014)
Ticket (voice)
One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends
(2014)
Usopp (voice)
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
(2014)
ToQger Equipment Voice
Detective Conan: Sunflowers of Inferno
(2015)
Shinichi Kudo / Kaitou Kid (voice)
Ressha Sentai ToQger Returns: Super ToQ #7 of Dreams
(2015)
Ticket
One Piece: Adventure of Nebulandia
(2015)
Usopp (voice)
The Boy and the Beast
(2015)
Teenage Jiromaru (voice)
Episode of Sabo: The Three Brothers' Bond - The Miraculous Reunion
(2015)
Usopp
Ressha Sentai ToQger vs. Kyoryuger: The Movie
(2015)
Ticket (voice)
The Adventures of Tyrano Boy
(2015)
Zesta (voice)
Ressha Sentai ToQger Final Live Tour 2015
(2015)
Ticket (voice), ToQger Equipment Voice
Detective Conan: The Darkest Nightmare
(2016)
Shinichi Kudo (voice)
One Piece Film: GOLD
(2016)
Usopp (voice)
One Piece: Heart of Gold
(2016)
Usopp (voice)
Detective Conan: Episode One - The Great Detective Turned Small
(2016)
Shinichi Kudo (voice)
Shuriken Sentai Ninninger vs. ToQger the Movie: Ninjas in Wonderland
(2016)
Ticket (voice), ToQger Equipment Voice
One Piece: The Great Treasure of Tongari Island
(2016)
Usopp (voice)
One Piece Film Gold: Episode 0
(2016)
Usopp (voice)
Case Closed: The Crimson Love Letter
(2017)
Shinichi Kudo (voice)
Mazinger Z: Infinity
(2017)
Mucha (voice)
Okaeri: Furusato no Karatsu
(2017)
Sora Hiroi (voice)
Kamiwaza Wanda
(2017)
One Piece Episode of East Blue
(2017)
Usopp (voice)
One Piece: Episode of Skypiea
(2018)
Usopp (voice)
Case Closed: Zero the Enforcer
(2018)
Shinichi Kudo / Kaito Kid (voice)
Peacemaker Kurogane: Belief
(2018)
Shinpachi Nagakura (voice)
Engimon
(2018)
Case Closed: The Fist of Blue Sapphire
(2019)
Shinichi Kudo / Kaito Kuroba (voice)
One Piece: Stampede
(2019)
Usopp (voice)
Detective Conan: The Scarlet School Trip
(2019)
Shinichi Kudo (voice)
Detective Conan: The Scarlet Bullet
(2021)
Shinichi Kudo (voice)
One Piece - En route vers l'épisode 1000
(2021)
Comédien de doublage de Usopp – Japon
One Piece Film Red
(2022)
Usopp (voice)
Detective Conan: The Bride of Halloween
(2022)
Shinichi Kudo (voice)
Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train
(2023)
Kaito Kuroba (voice)
Detective Conan: Black Iron Submarine
(2023)
Shinichi Kudou (voice)
Case Closed: The Million-Dollar Pentagram
(2024)
Kaito Kid / Shinichi Kudou (voice)
Detective Conan vs Kaito Kid
(2024)
Kaito Kuroba / Kaito Kid (voice)
Detective Conan vs. Kid the Phantom Thief
(2024)