, known professionally as , is a Japanese actor, voice actor, and rakugoka currently affiliated with Gokū山口勝平プロフィール and formerly with 21st Century Fox.Doi, Hitoshi. "Yamaguchi Kappei". Seiyuu Database. January 11, 2011. Retrieved January 10, 2011. After making his voice acting debut in 1989 as the male version of Ranma Saotome in Ranma ½, Yamaguchi went on to other notable roles, including Inuyasha in Inuyasha and its sequel Yashahime, and L in Death Note. He currently voices Shinichi Kudo and Kaito Kid in Case Closed, Usopp in One Piece and Teddie in Persona 4. He is married and has a son, Ryūnosuke, and a daughter, Akane.Mitsukoshi Charity Auction-1996.03.31 Ryūnosuke and Akane are also voice actors, while the latter is also a rakugoka.
Biography Early life and education Yamaguchi was born in Fukuoka. He graduated from Fukuoka's prefectural Chikuzen High School. In 1984, Yamaguchi moved to Tokyo and entered the Tokyo Announce University College, a vocational school training various performers from voice actors to singers to announcers or even reporters and dancers.
Background Yamaguchi is the son of a carpenter father. He had been into anime as a child, but his interest lapsed in high school after joining a band.
He attended acting classes taught by Kaneta Kimotsuki, and soon joined his 21st Century Fox theater company. About a year after joining, he took the stage for the first time in a supporting role, and played the lead role of the boy detective in So Kitamura's "Odoriko ~THE DANCER MURDER CASE~".
Yamaguchi began working as a voice actor, voicing Ranma Saotome in Ranma ½.
Activities as a voice actor He has appeared in numerous works in the fields of live-action dramas, animation, games, and foreign film dubbing. In anime, he specializes in playing lively children and young people. In the early 1990s, he also played low-key roles such as Eto in Record of Lodoss War and Gokujurota in Gale! Iron League.
In Case Closed, he plays Shinichi Kudo and Kaito Kid. His favorite "Conan" episode is "Flying Locked Room Shinichi Kudo's First Incident".
In One Piece, he originally wanted to play the role of Monkey D. Luffy, the main character, and went to audition, but was unsuccessful. He decided to play the role of Usopp after receiving an offer. Yamaguchi has been reading the original manga since the beginning of the serialization, and couldn't imagine what kind of voice the character would have prior to getting the role.
Other ventures In Japanese dubs of international works, Yamaguchi is the voice of Kyle Broflovski, Bugs Bunny, and Crash Bandicoot. He appeared in hentai and eroge as .Yamaguchi Kappei – Audiowiki After performing rakugo at an event in 2017, Yamaguchi started studying under Shirano Tatekawa. He uses the name as a rakugoka.
Yamaguchi made his first public appearance in North America at Otakon 2008AnimeCons.com: News: Article and in Sakura-Con 2009.Sakura-Con to Host Voice Actor Kappei Yamaguchi – Anime News NetworkSakura-Con 2009 Information @ AnimeCons.com His third appearance to date has been at Animazement in 2010. He also made a fourth appearance in Hawaii at Kawaii Kon in 2011.
Yamaguchi won the individual seiyu award at the 2003 Tokyo International Anime Fair.
He established his own entertainment production company called Goku Co. Ltd., of which he is president.
In 2019, Yamaguchi won the Kei Tomiyama Award at the 13th Seiyu Awards.
Filmography Anime series Year Title Role Note Ref 1989-92 Ranma ½ Ranma Saotome Debut 1990 Kyatto Ninden Teyandee Yattaro 1992 Super Zugan Hideyuki Toyotomi 1993 YuYu Hakusho Jin Miracle Girls Yūda Noda Jungle King Tar-chan Etekichi Nintama Rantarō Hanabusa Makinosuke Shippū! Iron Leaguer Jūrōta Kiwami 1994 Mobile Fighter G Gundam Sai Saici Red Baron Ken Kurenai Tasuke Captain Tsubasa J Adult Ryo Ishizaki 1995 Wedding Peach Takurou Amano Demon Child Zenki Zenki (little) Imagination Science World Gulliver Boy Gulliver Toscanni 1995-96 Gokinjo Monogatari Tsutomu Yamaguchi 1996 Baby and Me Takuya Enoki Brave Command Dagwon Rai Utsumi Case Closed Shinichi Kudo GeGeGe no Kitarō Noppera-bō The Vision of Escaflowne Shesta 1997 Pokémon Tōru Revolutionary Girl Utena Shiori's ex-boyfriend 1998 Fancy Lala Tarō Yoshida Cowboy Bebop Rhint Episode 10 Cyber Team in Akihabara The White Prince (Crane Bahnsteik) Takoyaki Mantoman Blue 1999 Betterman Keita Aono Eden's Bowy Yorn Digimon Adventure Chuumon One Piece Usopp 1999-00 Kamikaze Kaitō Jeanne Noin Claude 2000-042009-10 Inuyasha Inuyasha 2000-01 Baby Felix Poindexter Gravitation Sakuma Ryūichi 2001 Angelic Layer: Mobile Angel Ryo Misaki Beyblade Michael Parker Sister Princess Taro Yamada Episode 1 2001-02 Pecola Bashatt 2002 Asobot Military History Goku Gokū Atashin'chi Fujino Rizelmine Tomonori Iwaki Gun Frontier Tochiro Oyama The Twelve Kingdoms Enki Weiß Kreuz Glühen Sena Izumi 2003 Mouse Sorata Muon/Mouse Di Gi Charat Nyo! Blue Ranger Zatch Bell! Danny Papuwa Chappy Rumiko Takahashi Anthology Intendant 2003-04 Peacemaker Kurogane Shinpachi Nagakura 2004 Yu-Gi-Oh! GX Daitokuji/Amnael Sgt. Frog Recruit Tororo Doki Doki School Hours Kenta Suetake DearS Oikawa Hikorō 2005 Doraemon Warusa Episode 228 The Law of Ueki Sōya Hideyoshi Fushigiboshi no Futagohime Ghost Episode 21 Paradise Kiss Yamaguchi Tsutomu 2005-08 Eyeshield 21 Raimon "Monta" Tarō 2006 Futari wa Pretty Cure Splash Star Flappy Kiba Hugh 2006-07 Death Note L 2007 Baccano! Tick Jefferson Da Capo II Wataru Itabashi 2008 Neo Angelique ~Abyss~ Rene One Outs Satoshi Ideguchi To Love-Ru Lacospo 2009 Pandora Hearts Cheshire Cat 2010 Magic Kaito Kaito Kuroba/Kaitō Kid Television special 2011 Dororon Enma-kun Meeramera Enma-kun 2011-12 Persona 4: The Animation Kuma (Teddie) 2012 Hunter × Hunter Feitan 2013 Danganronpa: The Animation Hifumi Yamada 2014 Chō-Bakuretsu I-Jigen Menko Battle Gigant Shooter Tsukasa Mendō Tsukasa Persona 4: The Golden Animation Kuma (Teddie) Magica Wars Esora Magic Kaito 1412 Kaitō Kid/Kaito Kuroba JoJo's Bizarre Adventure: Stardust Crusaders Forever 2015 Rampo Kitan: Game of Laplace Corpsey Rin-ne Sabato Rokudō 2016 Shōwa Genroku Rakugo Shinjū Amaken JoJo's Bizarre Adventure: Diamond Is Unbreakable Shigekiyo Yangu Nobunaga no Shinobi Hideyoshi 2016-17 Kamiwaza Wanda Wanda 2017 The Ancient Magus' Bride Oberon 2018 Radiant Master Lord Majesty 2019 Vinland Saga Jabbathe Zoids Wild Ep 21 2020 Bofuri Shin The Gymnastics Samurai Bigbird Aragaki 2020-22 Yashahime Inuyasha 2021 Jujutsu Kaisen Kechizu Odd Taxi Kakihana 2022 JoJo's Bizarre Adventure: Stone Ocean Yo-Yo Ma Boruto Ōga 2024 Bucchigiri?! Komao Mechanical Arms Yakumo Ranma ½ Ranma Saotome 2025 Ishura Season 2 Krafnir the Hatch of Truth Mechanical Marie Old Man Carl 2026 Daemons of the Shadow Realm Hikaru "Hagure" Kagemori
Original video animation Year Title Role Note Ref 1988 Legend of the Galactic Heroes Heinrich Lambertz 1990 1+2=Paradise series Yuusuke Yamamoto Devil Hunter Yohko Wakabayashi Osamu Ryokunohara Labyrinth: Sparkling Phantom Kanata Tokino 1990-91 Record of Lodoss War Etoh Urotsukidoji II: Legend of the Demon Womb Young Munchausen II 1991 Mōryō Senki MADARA Madara Slow Step Shū Akiba RG Veda Ryū-ō 1991-93 Sōryūden Amaru Ryudo 1991-95 The Heroic Legend of Arslan series Arslan 1992-93 K.O. Century Beast Warriors Wan Dabadatta 1992-94 Tokyo Babylon Subaru Sumeragi 1992-98 Giant Robo: The Day the Earth Stood Still Daisaku Kusama 1992-02 La Blue Girl Nin-Nin 1993-96 Ranma ½ series Ranma Saotome 1993 The Cockpit Soldier Utsunomiya 1994 Fish in the Trap Matsui Takahiro Twin Angels Onimaru Baki the Grappler Baki Hanma Plastic Little Nichol Hawking 1995 Vixens Ujita Fire Emblem Julian 1997 Jungle de Ikou! Takuma 1998 Virgin Fleet Sada 1999 Gravitation: Lyrics of Love Ryuichi Sakuma 2000-present Detective Conan series Shinichi Kudo 2001 Pocket Monsters: Pikachu no Fuyuyasumi 2001 Delibird 2002 Futari Ecchi Yamada (Rika's friend) 2003 The Boy Who Carried a Guitar: Kikaider vs. Inazuman Inazuman 2004 Netrun-mon BB Runner 2006 Angel's Feather series Shou Hamura Freedom Project Biz 2008 Ranma: Akumu! Shunminkō Ranma Saotome 2011 Coicent White deer 2021 The Ancient Magus' Bride: The Boy From the West and the Knight of the Mountain Haze Oberon
Anime films Year Title Role Note Ref 1989 Kiki's Delivery Service Tombo 1991 Ranma ½: Big Trouble in Nekonron, China Ranma Saotome 1992 Ranma ½: Nihao My Concubine 1994 Ranma ½: One Flew Over the Kuno's Nest 1996 Gokinjo Monogatari Tsutomu Yamaguchi Kindaichi Shōnen no Jikenbo Hajime Kindaichi Only this first film 1997 Case Closed: The Time Bombed Skyscraper Shinichi Kudo 1998 Case Closed: The Fourteenth Target 1999 Case Closed: The Last Wizard of the Century Shinichi Kudo, Kaito Kid 2000 Case Closed: Captured in Her Eyes Shinichi Kudo 2000-092011-122016 One Piece series Usopp 2001 Doraemon: Nobita and the Winged Braves Tobio Case Closed: Countdown to Heaven Shinichi Kudo 2002 Case Closed: The Phantom of Baker Street A Tree of Palme Roualt Bonobono: Kumomo no Ki no Koto Araiguma-kun 2003 Detective Conan: Crossroad in the Ancient Capital Shinichi Kudo 2004 Dead Leaves Retro Detective Conan: Magician of the Silver Sky Shinichi Kudo, Kaito Kid 2005 Detective Conan: Strategy Above the Depths Shinichi Kudo 2006 Dōbutsu no Mori Fūta the Owl Detective Conan: The Private Eyes' Requiem Shinichi Kudo, Kaito Kid 2007 Detective Conan: Jolly Roger in the Deep Azure Shinichi Kudo 2008 Detective Conan: Full Score of Fear 2009 Detective Conan: The Raven Chaser 2010 Omae Umasou da na Heart Detective Conan: The Lost Ship in the Sky Shinichi Kudo, Kaito Kid 2011 Detective Conan: Quarter of Silence Shinichi Kudo 2012 Detective Conan: The Eleventh Striker Tiger & Bunny: The Beginning Robin Asura 2013 Lupin the 3rd vs. Detective Conan: The Movie Shinichi Kudo, Kaito Kid Detective Conan: Private Eye in the Distant Sea Shinichi Kudo 2014 Detective Conan: Dimensional Sniper 2015 Anata o Zutto Aishiteru Barudo The Boy and the Beast Jirōmaru – teen Detective Conan: Sunflowers of Inferno Shinichi Kudo, Kaito Kid 2016 Detective Conan: The Darkest Nightmare Shinichi Kudo 2019 Case Closed: The Fist of Blue Sapphire Shinichi Kudo, Kaito Kid 2022 Odd Taxi: In the Woods Kakihana 2025 Cute High Earth Defense Club Eternal Love! Aye-aye Dive in Wonderland White Rabbit
Web animation Year Title Role Note Ref 2008 Ikuze! Gen-san Genzō Tamura 2022 JoJo's Bizarre Adventure: Stone Ocean Yo-Yo Ma
Live action Year Title Role Note Ref 1998 Godzilla Island Dogora Tetsuwan Tantei Robotack Torabolt 1999 Moero!! Robocon Robopachi 2003 Pretty Guardian Sailor Moon Artemis 2004 Tokusou Sentai Dekaranger Thousanian Gineka Ep. 34 2010 Tensou Sentai Goseiger Marloid Ain-I of the Neutral (Coro) Ep. 41 2013 Unofficial Sentai Akibaranger Chief Clerk Blu-ray Ep. 2 Chief Editor HVD Ep. 3 2014 Zyuden Sentai Kyoryuger vs. Go-Busters: The Great Dinosaur Battle! Farewell Our Eternal Friends ToQger Equipment Voice Ressha Sentai ToQger Ticket, ToQger Equipment Voice Ressha Sentai ToQger Vs. Kamen Rider Gaim Spring Vacation Combining Special Heisei Rider vs. Shōwa Rider: Kamen Rider Taisen feat. Super Sentai Ressha Sentai ToQger the Movie: Galaxy Line S.O.S. 2015 Ressha Sentai ToQger vs. Kyoryuger: The Movie They Went and Came Back Again Ressha Sentai ToQGer: Super ToQ 7gou of Dreams 2016 Shuriken Sentai Ninninger vs. ToQger the Movie: Ninja in Wonderland Doubutsu Sentai Zyuohger Illusion Ep. 22
Video games