Kappei Yamaguchi
Known for Acting · 363 credits
- Born
- 1965-05-23 (age 61)
- Place of birth
- Fukuoka, Fukuoka, Japan
- Also known as
- Mitsuo Yamaguchi · Kinoshita Toukichirou · Ushiku Kyouya · Yamaguchi Kappei · Yamaguchi Mitsuo · 木下 桃吉郎
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.
Known For
TV Shows (158)
Ranma1/2
2024
as Ranma Saotome (voice)
JUJUTSU KAISEN
2020
as Kechizu (voice)
Detective Conan
1996
as Shinichi Kudo (voice)
Hunter x Hunter
2011
as Feitan (voice)
Sgt. Frog
2004
as Tororo
Death Note
2006
as L (voice)
JoJo's Bizarre Adventure
2012
as Shigechi (voice) / Yo-Yo Ma
One Piece
1999
as Usopp (voice)
Ranma ½
1989
as Ranma Saotome ♂ (voice)
Atashin'chi
2002
as Fujino (voice)
Doubutsu Sentai Zyuohger
2016
as Illusion (voice)
InuYasha
2000
as InuYasha (voice)
Yu-Gi-Oh! GX
2004
as Professor Daitokuji / Lyman Banner (voice)
Ressha Sentai ToQger
2014
as Ticket (voice)
Cowboy Bebop
1998
as Rhint (voice)
The Ancient Magus' Bride
2017
as Oberon (voice)
Showa Genroku Rakugo Shinju
2016
as Amaken (voice)
Urusei Yatsura
2022
as Saizo (voice) / Tsuyuo (voice) / B-Bo (voice)
Super Dragon Ball Heroes
2018
as Fu (voice)
Captain Tsubasa J
1994
as Ryou Ishizaki (voice)
Yashahime: Princess Half-Demon
2020
as Inuyasha (voice)
Eyeshield 21
2005
as Raimon Tarou
Revolutionary Girl Utena
1997
as Shiori's boyfriend (voice)
Tokusou Sentai Dekaranger
2004
as Thousanian Gineka (voice)
Nadia: The Secret of Blue Water
1990
as Hamahama (voice)
GeGeGe no Kitaro
2018
as Ittan Momen
Pretty Guardian Sailor Moon
2003
as Artemis (voice)
The Ancient Magus' Bride: The Boy from the West and the Knight of the Blue Storm
2021
as Oberon (voice)
Gravitation
2000
as Ryuichi Sakuma (voice)
Claymore
2007
as Male 'Awakened' 3 (voice)
Majikoi - Oh! Samurai Girls
2011
as Ikuro Fukumoto (voice)
Powerpuff Girls Z
2006
The Twelve Kingdoms
2002
as Rokuta (voice)
RADIANT
2018
as Master Lord Majesty (voice)
Tensou Sentai Goseiger
2010
as Ain-I of the Neutral (voice)
Wedding Peach
1995
as Takuro Amano
Magic Kaito 1412
2014
as Kaito Kuroba / Shinichi Kudo (voice)
BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense.
2020
as Shin (voice)
Giant Robo: The Day the Earth Stood Still
1992
as Daisaku Kusama
Peacemaker Kurogane
2003
as Shinpachi Nagakura (voice)
Bakuage Sentai Boonboomger
2024
as Ticket (voice)
Vinland Saga
2019
as Jabbathe (voice)
Kamikaze Kaitou Jeanne
1999
as Noin Claude
Zenki
1995
as Zenki (voice)
Miracle Girls
1993
as Yuuya Noda (voice)
PreCure Splash Star
2006
as Flappy (voice)
Rin-ne
2015
as Sabato Rokudou
Genji Tsuushin Agedama
1991
as Hikari Yumenokōji (voice)
Mobile Fighter G Gundam
1994
as Sai Saici (voice)
Danganronpa: The Animation
2013
as Hifumi Yamada (voice)
Monkey Typhoon
2002
as Goku (voice)
Shippuu! Iron Leaguer
1993
as Kiwami Juurouta
Samurai Pizza Cats
1990
as Yattarou
Space Academy
2021
as Jii-chan (voice)
Please Save My Earth
1993
as Hirohiko Kazama (voice)
The Hakkenden: Legend of the Dog Warriors
1990
as Sosuke Inukawa (voice)
Lil' Red Riding Hood Cha-Cha
1994
The Law of Ueki
2005
as Hideyoshi Soya (voice)
Baby and Me
1996
as Takuya Enoki (voice)
Stitch!
2008
as Kijimuna
Movies (205)
Detective Conan: One-Eyed Flashback
2025
as Shinichi Kudo (voice)
Kiki's Delivery Service
1989
as Tombo (voice)
Detective Conan: Quarter of Silence
2011
as Shinichi Kudo (voice)
Kishin Douji Zenki Gaiden: Anki Kitan
1997
as Zenki
Death Note Relight 1: Visions of a God
2007
as L (voice)
Detective Conan: The Scarlet Bullet
2021
as Shinichi Kudo (voice)
One Piece Film Red
2022
as Usopp (voice)
One Piece Film: Z
2012
as Usopp (voice)
One Piece: Dream Soccer King!
2002
as Usopp (voice)
Detective Conan: The Phantom of Baker Street
2002
as Shinichi Kudo (voice)
Lupin the Third vs. Detective Conan: The Movie
2013
as Shinichi Kudo / Kaito Kuroba (voice)
One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends
2014
as Usopp (voice)
Detective Conan: The Eleventh Striker
2012
as Shinichi Kudo (voice)
Dream 9 Toriko x One Piece x Dragon Ball Z Super Collaboration Special!!
2013
as Usopp (voice)
Detective Conan: The Lost Ship in the Sky
2010
as Shinichi Kudo / Kaito Kid (voice)
Detective Conan: Private Eye in the Distant Sea
2013
as Shinichi Kudo (voice)
Detective Conan: Dimensional Sniper
2014
as Shinichi Kudo (voice)
Case Closed: The Crimson Love Letter
2017
as Shinichi Kudo (voice)
Detective Conan: Captured in Her Eyes
2000
as Shinichi Kudo (voice)
Detective Conan: Black Iron Submarine
2023
as Shinichi Kudou (voice)
Mazinger Z: Infinity
2017
as Mucha (voice)
Detective Conan: The Million-Dollar Pentagram
2024
as Kaito Kid / Shinichi Kudou (voice)
Assassination Classroom the Movie: Our Time
2026
as Futoshi (voice)
One Piece 3D: Straw Hat Chase
2011
as Usopp (voice)
Death Note Relight 2: L's Successors
2009
as L (voice)
One Piece Film: GOLD
2016
as Usopp (voice)
One Piece: Baron Omatsuri and the Secret Island
2005
as Usopp (voice)
Detective Conan: Crossroad in the Ancient Capital
2003
as Shinichi Kudo (voice)
One Piece: The Movie
2026
as Usopp (voice)
One Piece: Jango's Dance Carnival
2001
as Usopp (voice)
Ranma 1/2: Team Ranma vs. the Legendary Phoenix
1994
as Ranma Saotome ♂ (voice)
Hunter x Hunter: Phantom Rouge
2013
as Feitan (voice)
Nineteen 19
1990
as Hiroaki Kusano (voice)
One Piece: Glorious Island
2012
as Usopp (voice)
One Piece: Heart of Gold
2016
as Usopp (voice)
Detective Conan: The Darkest Nightmare
2016
as Shinichi Kudo (voice)
Detective Conan: The Last Wizard of the Century
1999
as Shinichi Kudo / Kaito Kuroba (voice)
One Piece Special: Open Upon the Great Sea! A Father's Huge, HUGE Dream!
2003
as Usopp (voice)
Case Closed: The Fourteenth Target
1998
as Shinichi Kudo (voice)
Yu-Gi-Oh! Bonds Beyond Time
2010
as Daitokuji (voice)
The Boy and the Beast
2015
as Teenage Jiromaru (voice)
Bonobono: Secret of the Kumomo Tree
2002
as Araiguma-kun
Detective Conan: The Time Bombed Skyscraper
1997
as Shinichi Kudo (voice)
Case Closed: Countdown to Heaven
2001
as Shinichi Kudo (voice)
One Piece: Episode of Skypiea
2018
as Usopp (voice)
Zyuden Sentai Kyoryuger vs. Go-Busters: The Great Dinosaur War
2014
as ToQger equipment (voice)
Detective Conan: Jolly Roger in the Deep Azure
2007
as Shin'ichi Kudo (voice)
Case Closed: Zero the Enforcer
2018
as Shinichi Kudo / Kaito Kid (voice)
One Piece: Adventure of Nebulandia
2015
as Usopp (voice)
Detective Conan: The Raven Chaser
2009
as Shinichi Kudo (voice)
One Piece: Stampede
2019
as Usopp (voice)
Detective Conan vs. Kid the Phantom Thief
2024
as Kaito Kuroba / Kaito Kid (voice)
Detective Conan: Strategy Above the Depths
2005
as Shinichi Kudou (voice)
One Piece: Episode of Luffy - Hand Island Adventure
2012
as Usopp (voice)
Detective Conan: Episode One - The Great Detective Turned Small
2017
as Shinichi Kudo (voice)
Detective Conan: Full Score of Fear
2008
as Shinichi Kudo (voice)
Detective Conan: Magician of the Silver Sky
2004
as Kaito Kid / Shinichi Kudou (voice)
One Piece: Clockwork Island Adventure
2001
as Usopp (voice)
Ressha Sentai ToQger vs. Kamen Rider Gaim: Spring Break Combined Special
2014
as Ticket / ToQger Equipment (voice)
Detective Conan: The Private Eyes' Requiem
2006
as Shinichi Kudo (voice) / Kaito Kuroba (voice)
One Piece Film: Strong World
2009
as Usopp (voice)
Detective Conan: The Bride of Halloween
2022
as Shinichi Kudo (voice)
Inferious Interplanetary War Chronicle - Condition Green
1991
as Oscar Cloud (voice)
Luffy's Fall! The Unexplored Region - Grand Adventure in the Ocean's Navel
2000
as Usopp (voice)
Devil Hunter Yohko
1990
Heart and Yummie
2010
as Heart (voice)
One Piece: The Desert Princess and the Pirates: Adventure in Alabasta
2007
as Usopp / Lashes (voice)
One Piece Episode of Nami: Tears of a Navigator and the Bonds of Friends
2012
as Usopp (voice)
Alice in Wonderland –Dive in Wonderland–
2025
as The White Rabit (voice)
One Piece: Giant Mecha Soldier of Karakuri Castle
2006
as Usopp (voice)
Detective Conan: Sunflowers of Inferno
2015
as Shinichi Kudo / Kaitou Kid (voice)
Nagasaki 1945 ~ The Angelus Bells
2005
One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom
2008
as Usopp (voice)
Asura
2012
Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train
2023
as Kaito Kuroba (voice)
Pretty Cure All Stars DX3: Deliver the Future! The Rainbow-Colored Flower That Connects the World
2011
as Flappy
Kamiwaza Wanda
2017
Battle Angel
1993
as Yūgo (voice)
Pretty Cure All Stars New Stage: Friends of the Future
2012
as Flappy
Ressha Sentai ToQger vs. Kyoryuger: The Movie
2015
as Ticket (voice)
Case Closed: The Fist of Blue Sapphire
2019
as Shinichi Kudo / Kaito Kuroba (voice)
Pretty Guardian Sailor Moon Special Act: We're Getting Married!！
2004
Detective Conan: The Disappearance of Conan Edogawa - The Worst Two Days in History
2015
as Shinichi Kudo (voice)
One Piece Episode of Merry: The Tale of One More Friend
2013
as Usopp (voice)
Twinbee PARADISE
1998
One Piece 3D: Gekisou! Trap Coaster
2011
as Usopp (voice)
Inuyasha the Movie: Affections Touching Across Time
2001
as Inuyasha (voice)
One Piece: Romance Dawn Story
2008
as Usopp (voice)
Inuyasha the Movie 2: The Castle Beyond the Looking Glass
2002
as Inuyasha (voice)
Inuyasha the Movie 4: Fire on the Mystic Island
2004
as Inuyasha (voice)
One Piece: Curse of the Sacred Sword
2004
as Usopp (voice)
One Piece: The Adventure in Grand Line
2002
as Usopp (voice)
Inuyasha the Movie 3: Swords of an Honorable Ruler
2003
as Inuyasha (voice)
Hanappe Bazooka
1992
as Hanahei Yamada (voice)
ワンピース特別編 わかりやすいルフィ大百科
2005
as 乌索普
One Piece: Dead End Adventure
2003
as Usopp (voice)
Camp Pikachu
2002
as Barubeat (voice)
K.O. Beast
1992
Shuriken Sentai Ninninger vs. ToQger the Movie: Ninjas in Wonderland
2016
as Ticket (voice), ToQger Equipment Voice
Pretty Cure All Stars DX: Everyone Is a Friend - A Miracle All Pretty Cures Together
2009
as Flappy (voice)
Gintama: Yoshiwara in Flames
2026
as Inorin (voice)
Peacemaker Kurogane: Belief
2018
as Shinpachi Nagakura (voice)
Appleland Story
1992
as Virgil
Ranma 1/2 the Movie 2: Nihao My Concubine
1992
as Ranma Saotome ♂ (voice)
Lupin the Third vs. Detective Conan
2009
as Shinichi Kudo (voice)
Grappler Baki: The Ultimate Fighter
1994
as Baki Hanma
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014
as ToQger Equipment Voice
One Piece: Chopper's Kingdom on the Island of Strange Animals
2002
as Usopp (voice)
One Piece Episode of Sabo: The Three Brothers' Bond - The Miraculous Reunion and the Inherited Will
2015
as Usopp (voice)
Madara
1991
as (voice)
TIGER & BUNNY: The Beginning
2012
as Robin Baxter (voice)
Giant Robo: The Day the Earth Stood Still
1992
as Daisaku Kusama
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991
as Ranma Saotome ♂ (voice)
Bondage Queen Kate
1994
as Dick (voice)
One Piece Episode of Alabasta Prologue
2011
as Usopp (voice)
Violence Jack: Hell's Wind
1990
as Saburo Tenma
ODDTAXI in the Woods
2022
as Eiji Kakihana (voice)
Animal Crossing: The Movie
2006
as Fûta (voice)
Urotsukidōji II: Legend of the Demon Womb
1991
as Young Munchausen II (voice)
Pretty Cure All Stars DX2: The Light of Hope - Protect the Rainbow Jewel!
2010
as Flappy (voice)
About 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… With 363 credits spanning from 1986 to 2026, Kappei Yamaguchi has appeared in 205 films and 158 TV shows.
Fans searching for Kappei Yamaguchi movies, Kappei Yamaguchi filmography, or the latest projects starring Kappei Yamaguchi can stream many of these titles on Bowood.TV, free and in HD, with no subscription required.
Most Popular Kappei Yamaguchi Movies
- Detective Conan: One-Eyed Flashback (2025) — as Shinichi Kudo (voice)
- Kiki's Delivery Service (1989) — as Tombo (voice)
- Detective Conan: Quarter of Silence (2011) — as Shinichi Kudo (voice)
- Kishin Douji Zenki Gaiden: Anki Kitan (1997) — as Zenki
- Death Note Relight 1: Visions of a God (2007) — as L (voice)
Where to Watch Kappei Yamaguchi Films
Most Kappei Yamaguchi movies and series are available to stream on Bowood.TV in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Kappei Yamaguchi, check our movies catalogue and browse page.