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