TS

Toshihiko Seki
Actor, Additional CreditsBorn June 11, 1962 (63 years)
Toshihiko Seki, born on June 11, 1962, in Sendai, Miyagi Prefecture, Japan, is a celebrated Japanese voice actor, actor, singer, and narrator. He has been active in the entertainment industry since 1983 and is affiliated with 81 Produce, a prominent talent agency.
Seki is known for his versatility, often voicing characters with serious or easily agitated personalities, such as Duo Maxwell in Mobile Suit Gundam Wing, Iruka Umino in Naruto, Kaien Shiba in Bleach and Riki in Ai no Kusabi. He has also portrayed deranged villains like Legato Bluesummers in Trigun and Muzan Kibutsuji in Demon Slayer: Kimetsu no Yaiba. One of his most iconic roles is Momotaros in Kamen Rider Den-O, a character he has reprised in numerous productions.
In addition to his work in anime, Seki has contributed to video games, movies, and dubbing. His talent and dedication have earned him recognition, including being ranked as the 9th favorite voice actor in the 26th Annual Reader's Poll by Animage Magazine in 2004.
Seki is known for his versatility, often voicing characters with serious or easily agitated personalities, such as Duo Maxwell in Mobile Suit Gundam Wing, Iruka Umino in Naruto, Kaien Shiba in Bleach and Riki in Ai no Kusabi. He has also portrayed deranged villains like Legato Bluesummers in Trigun and Muzan Kibutsuji in Demon Slayer: Kimetsu no Yaiba. One of his most iconic roles is Momotaros in Kamen Rider Den-O, a character he has reprised in numerous productions.
In addition to his work in anime, Seki has contributed to video games, movies, and dubbing. His talent and dedication have earned him recognition, including being ranked as the 9th favorite voice actor in the 26th Annual Reader's Poll by Animage Magazine in 2004.
Movies & Shows on Plex
Known For
Filmography
2025 | Demon Slayer -Kimetsu no Yaiba- The Movie: Infinity Castle · as Muzan Kibutsuji (voice) |
2025 | Mashin Creator Wataru (TV Series) · as Mr. Liar (voice) |
2025 | I Have a Crush at Work (TV Series) · as Pastor (voice) |
2024 | Nintama Rantaro Dokutake Ninja-tai Saikyou no Gunshi · as Hansuke Doi (voice) |
2024 | Trillion Game (2024) (TV Series) · as Toru Hebijima |
2024 | Good Bye, Dragon Life (TV Series) · as Deo |
2024 | Uzumaki (TV Series) · as Kawamoto |
2024 | I Parry Everything (TV Series) · as Carew (voice) |
2023 | The Birth of Kitaro: Mystery of GeGeGe · as Kitarou's Father (voice) |
2023 | Onimusha (TV Series) · as Kojiro Sasaki (voice) |
2023 | PLUTO (TV Series) · as Pluto (voice) |
2023 | Reign of the Seven Spellblades (TV Series) · as Theodore Mcfarlane |
2023 | The Most Heretical Last Boss Queen: From Villainess to Savior (TV Series) · as Clark Darwin (voice) |
2023 | Rurouni Kenshin (2023) (TV Series) · as Narration (voice) |
2023 | Black Clover: Sword of the Wizard King · as Conrad Leto (voice) |
2023 | Mashle: Magic and Muscles (TV Series) · as Adam Jobs |
2023 | Run for the Money: The Great Mission (TV Series) · as Dracula |
2023 | Demon Slayer: Kimetsu No Yaiba - To the Swordsmith Village · as Muzan Kibutsuji |
2023 | High Card (TV Series) · as Norman Kingstat (voice) |
2022 | BLUE LOCK (TV Series) · as Seiji Hoichi |
2022 | I've Somehow Gotten Stronger When I Improved My Farm-Related Skills (TV Series) · as Mirage |
2022 | Saiyuki Reload -Zeroin- (TV Series) · as Genjo Sanzo |
2021 | Build-Divide (TV Series) · as Mario Higuma |
2021 | The Vampire Dies in No Time (TV Series) · as Nagiri Tsujigiri |
2021 | The Fruit of Evolution: Before I Knew It, My Life Had It Made (TV Series) · as God |
2021 | Demon Slayer: Kimetsu no Yaiba - Asakusa Arc · as Muzan Kibutsuji (voice) |
2021 | My Hero Academia: World Heroes' Mission · as Eddie Soul (voice) |
2021 | Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Senki · as Momotaros (voice) / Kamen Rider Den-O (voice) |
2020 | Our Last Crusade or the Rise of a New World (TV Series) · as Salinger |
2020 | Higurashi: When They Cry (TV Series) · as Kyousuke Irie (voice) |
2020 | Kamen Rider Den-O: Pretty Den-O Appears! · as Momotaros |
2020 | The Misfit of Demon King Academy (TV Series) · as Ahide Alobo Agatze (voice) |
2020 | Plunderer (TV Series) · as Schmelman |
2019 | Ascendance of a Bookworm (TV Series) · as Eustachius |
2019 | Saint Seiya: Knights of the Zodiac (TV Series) · as Scorpio Milo (voice) |
2019 | Mobile Suit Gundam: The Origin - Advent of the Red Comet (TV Series) · as Char Aznable |
2019 | Sarazanmai (TV Series) · as Yuri Kamome |
2019 | Demon Slayer: Kimetsu no Yaiba (TV Series) · as Muzan Kibutsuji (voice) |
2019 | POP TEAM EPIC TV Special · as Popuko (white Tiger Version, B Part Of Part Ii) |
2019 | Demon Slayer: Kimetsu no Yaiba - Sibling's Bond · as Muzan Kibutsuji (voice) |
2019 | Star☆Twinkle Precure (TV Series) · as Toto Hagoromo (voice) |
2018 | Kamen Rider Heisei Generations Forever · as Momotaros / Kamen Rider Den-O Sword Form (voice) |
2018 | Saint Seiya: Saintia Shô (TV Series) · as Scorpio Milo (voice) |
2018 | Kamen Rider Zi-O (TV Series) · as Momotaros |
2018 | Golden Kamuy (TV Series) · as Kazuo Henmi (voice) |
2018 | Caligula (TV Series) · as Counselor |
2018 | SWORD GAI The Animation (TV Series) · as Miura Takuma |
2018 | The Ryuo's Work is Never Done! (TV Series) · as Kiyotaki Kousuke (voice) |
2017 | Mazinger Z: INFINITY · as Tetsuya Tsurugi (voice) |
2017 | The Reflection (TV Series) · as Michael Holden (voice) |
2017 | Elegant Yokai Apartment Life (TV Series) · as Naomi Chiaki |
2017 | Atom: The Beginning (TV Series) · as Client |
2017 | Boruto: Naruto Next Generations (TV Series) · as Iruka Umino |
2017 | The Laughing Salesman (TV Series) · as Shisao Kihara(story2) |
2017 | Chou Super Hero Taisen: Kamen Rider vs. Super Sentai · as Momotaros - Kamen Rider Den-O Sword Form (voice) |
2016 | TO BE HERO (TV Series) · as Chinese Tohoku Muffler (voice) |
2016 | Mob Psycho 100 (TV Series) · as Musashi Goda (voice) |
2016 | The Day Naruto Became Hokage · as Iruka Umino (voice) |
2016 | Ace Attorney (TV Series) · as Aiga Hoshiidake |
2016 | Showa Genroku Rakugo Shinju (TV Series) · as Eisuke Higuchi (voice) |
2015 | Mobile Suit Gundam: The Origin II - Artesia's Sorrow · as Char Aznable (voice) |
2015 | Saint Seiya: Soul of Gold (TV Series) · as Scorpio Milo (voice) |
2015 | Blood Blockade Battlefront (TV Series) · as Dr. Gamimozu |
2014 | The Last: Naruto the Movie · as Iruka Umino |
2014 | Girlfriend BETA (TV Series) · as Shiina Kokomi's Father |
2014 | Gonna Be the Twin-Tail!! (TV Series) · as Foxgildy |
2014 | Cross Ange: Rondo of Angel and Dragon (TV Series) · as Embryo (voice) |
2014 | Super Hero Taisen Kamen Rider feat. Super Sentai: Heisei Rider vs. Showa Rider · as Kamen Rider Den-O Sword Form (voice) |
2014 | Wild Adapter (TV Series) · as Kou |
2014 | Space Dandy (TV Series) · as Public Prosecutor (voice) |
2013 | Hunter x Hunter: The Last Mission · as Wing (voice) |
2013 | Gingitsune: Messenger Fox of the Gods (TV Series) · as Tatsuo Saeki (voice) |
2013 | 声優戦隊ボイストーム7 (TV Series) · as (voice) |
2013 | Kill la Kill (TV Series) · as Senketsu |
2013 | Higurashi no Naku Koro ni Kaku: Outbreak · as Kyousuke Irie (voice) |
2013 | Sanjougattai Transformers Go! (TV Series) · as Gekisōmaru (voice) |
2013 | A Certain Magical Index: The Movie - The Miracle of Endymion · as Aleister Crowley |
2012 | Kamen Rider Wizard (TV Series) · as Kamen Rider Den-O |
2012 | Road to Ninja - Naruto the Movie · as Iruka Umino (voice) |
2012 | Kamen Rider × Super Sentai: Super Hero Taisen · as Momotaros - Kamen Rider Den-O Sword Form (voice) |
2012 | Star Blazers 2199 (TV Series) · as Shin'ya Itô |
2012 | Naruto Spin-Off: Rock Lee & His Ninja Pals (TV Series) · as Iruka Umino |
2012 | Smile Precure! (TV Series) · as Hiroshi Hoshizora |
2011 | Guilty Crown (TV Series) · as Kurosu Ouma (voice) |
2011 | Hunter x Hunter (2011) (TV Series) · as Wing (voice) |
2011 | When They Cry: Kira (TV Series) · as Kyosuke Irie |
2011 | Detective Conan: Quarter of Silence · as Shogo Hikawa (voice) |
2011 | Pretty Rhythm (TV Series) · as 氷室 聖 |
2011 | Hyouge Mono (TV Series) · as Mitsunari Ishida |
2011 | Kamen Rider OOO, Den-O, & All Riders: Let's Go Kamen Riders · as Momotaros / Kamen Rider Den-O Sword Form (voice) |
2011 | Saiyuki Gaiden (TV Series) · as Konzen Dōji (voice) |
2011 | Gekijouban anime Nintama rantarou: Ninjutsu gakuen zenin shutsudou! no dan · as Hansuke Doi (voice) |
2010 | Psychic Detective Yakumo (TV Series) · as Isshin Saitō |
2010 | Kamen Rider Super Den-O Trilogy: Episode Yellow - Treasure de End Pirates · as Momotaros (voice) |
2010 | Kamen Rider Super Den-O Trilogy: Episode Blue - The Dispatched Imagin is Newtral · as Momotaros (voice) |
2010 | Kamen Rider Super Den-O Trilogy: Episode Red - Zero's Star Twinkle · as Momotaros (voice) |
2010 | Katanagatari (TV Series) · as Umigame Maniwa (voice) |
2009 | Kamen Rider Movie War 2010: Kamen Rider vs. Kamen Rider W & Decade · as Kamen Rider Den-O (voice) |
2009 | Kamen Rider Decade: All Riders vs. Dai-Shocker · as Momotaros / Kamen Rider Den-O (voice) |
2009 | Seinto Seiya: The Lost Canvas - Meio Shinwa (TV Series) · as Kyôkô |
2009 | Dogs: Bullets & Carnage (TV Series) · as Ernst Rammsteiner |
2009 | Super Kamen Rider Den-O & Decade Neo Generations: The Onigashima Battleship · as Momotaros (voice) |
2009 | Pandora Hearts (TV Series) · as Blake |
2009 | Kamen Rider Decade (TV Series) · as Momotaros |
2008 | Farewell Kamen Rider Den-O: Final Countdown · as Momotaros (voice) |
2008 | A Certain Magical Index (TV Series) · as Aleister Crowley (voice) |
2008 | Legends of the Dark King: A Fist of the North Star Story (TV Series) · as Souther |
2008 | Kamen Rider Kiva: King of the Castle in the Demon World · as Penetentiary Officer Sanjo |
2008 | Blade of the Immortal (TV Series) · as Souri (voice) |
2008 | Sekirei (TV Series) · as Hiroto Minaka |
2008 | Kamen Rider Den-O & Kiva: Climax Deka · as Momotaros (voice) |
2007 | .hack//G.U. Trilogy · as Cast |
2007 | Kamen Rider Den-O: I'm Born! · as Momotaros (voice) |
2007 | When They Cry: Kai (TV Series) · as Kyosuke Irie |
2007 | Saiyuki Reload: Burial (TV Series) · as Genjō Sanzō (voice) |
2007 | Princess Resurrection (TV Series) · as Prosecutor |
2007 | Emily Of New Moon (2007) (TV Series) · as Dean Priest |
2007 | Naruto Shippuden (TV Series) · as Iruka Umino (voice) |
2007 | Kamen Rider Den-O (TV Series) · as Momotaros (voice) |
2006 | Shonen Onmyouji (TV Series) · as Fujiwara No Yukinari |
2006 | Angelique: When Hearts Awaken (TV Series) · as Luva |
2006 | Mobile Suit Gundam SEED Destiny: TV Movie I - The Shattered World · as Rey Za Burrel |
2006 | When They Cry - Higurashi (TV Series) · as Kyousuke Irie (voice) |
2005 | Gintama (TV Series) · as Kamiyama |
2005 | Mobile Suit Gundam SEED Destiny: FINAL PLUS · as Rau Le Creuset |
2005 | MÄR (TV Series) · as Danna Toramizu |
2004 | Meine Liebe (TV Series) · as Ludwig Herzog Von Mohn Nahe Liechtenstein (voice) |
2004 | Mobile Suit Gundam SEED Destiny (TV Series) · as Rey Ze Burrel |
2004 | Bleach (TV Series) · as Kaien Shiba |
2004 | My-HiME (TV Series) · as Reito Kanzaki (voice) |
2004 | Samurai Champloo (TV Series) · as Yamane (voice) |
2004 | Paranoia Agent (TV Series) · as Mitsuhiro Maniwa (voice) |
2003 | Fullmetal Alchemist (TV Series) · as Belshio |
2003 | Requiem from the Darkness (TV Series) · as Momosuke Yamaoka (voice) |
2003 | RahXephon: The Motion Picture - Pluralitas Concentio · as Makoto Isshiki |
2003 | Detective School Q (TV Series) · as Akatsuki Renjou |
2003 | Ninja Scroll: The Series (TV Series) · as Aizen |
2002 | Saint Seiya: The Hades Chapter (TV Series) · as Milo (voice) |
2002 | Mobile Suit Gundam SEED (TV Series) · as Rau Le Creuset (voice) |
2002 | Naruto (TV Series) · as Iruka Umino (voice) |
2002 | RahXephon (TV Series) · as Makoto Isshiki |
2002 | Mirage of Blaze (TV Series) · as Takaya Ohgi (voice) |
2001 | Rave Master (TV Series) · as Shuuda |
2001 | Final Fantasy: Unlimited (TV Series) · as Cid |
2001 | Saiyuki: Requiem - The Motion Picture · as Genjo Sanzo (voice) |
2001 | Fruits Basket (TV Series) · as Momiji's Father |
2001 | Zone of the Enders: Dolores (TV Series) · as Nikolai (fourth Yan) |
2001 | Noir (TV Series) · as Milosh |
2000 | Vampire Hunter D: Bloodlust · as Grove Marcus |
2000 | InuYasha (TV Series) · as Garamaru |
2000 | Baby Felix (TV Series) · as Felix |
2000 | Alexander: The Movie · as Alexander |
2000 | Descendants of Darkness (TV Series) · as Yutaka Watari (voice) |
2000 | Saiyuki (TV Series) · as Genjo Sanzo (voice) |
1999 | One Piece (TV Series) · as Duval |
1999 | Pet Shop of Horrors (TV Series) · as Count D (voice) |
1999 | Bビーダマン爆外伝V (TV Series) · as Kurobon |
1999 | Harlock Saga (TV Series) |
1998 | Blue Submarine No. 6 (TV Series) · as Katsuma Nonaka |
1998 | Gundam Wing: The Movie - Endless Waltz · as Duo Maxwell (voice) |
1998 | Nightwalker: Midnight Detective (TV Series) · as Bait |
1998 | Silent Möbius (TV Series) · as Genvara |
1998 | Trigun (TV Series) · as Legato Bluesummers (voice) |
1998 | Revival of Evangelion · as Asuka's Father |
1998 | Bomberman B-Daman Bakugaiden (TV Series) |
1998 | Outlaw Star (TV Series) · as Fred (voice) |
1997 | Twilight of the Dark Master · as Shijo Tsunami (voice) |
1997 | Reign: The Conqueror (TV Series) · as Alexander (voice) |
1997 | 竜機伝承 (TV Series) · as Rain Keeves Fearudo (voice) |
1997 | Clamp School Detectives (TV Series) · as Husband |
1997 | I Dream of Mimi (TV Series) · as Master |
1997 | Hakugei - Legend of the Moby Dick (TV Series) |
1997 | Hareluya II Boy (TV Series) · as Azami |
1997 | Hyper Police (TV Series) · as Sakunoshin Chikura |
1997 | Pokémon (TV Series) · as Ken |
1997 | Neon Genesis Evangelion: Death & Rebirth · as Asuka's Father |
1997 | Mobile Suit Gundam Wing: Endless Waltz (TV Series) · as Duo Maxwell |
1996 | Legend of Crystania (TV Series) · as Nursel |
1996 | You're Under Arrest! (TV Series) · as Kazuka Tokio |
1996 | X · as Shougo |
1996 | |
1996 | B’T X (TV Series) · as Quatro (voice) |
1996 | Shinesman (TV Series) · as Shujin Seki (voice) |
1996 | The End of the Century Darling · as Todorokki Kouhei (voice) |
1995 | Bio Hunter · as Komada |
1995 | Neon Genesis Evangelion (TV Series) · as Assistant C |
1995 | Legend of Crystania: The Motion Picture · as Nasare |
1995 | Mobile Suit Gundam Wing (TV Series) · as Duo Maxwell (voice) |
1995 | Azuki-chan (TV Series) · as Ryuuzou |
1994 | The Legend of Zorro (TV Series) · as Don Diego De La Vega / Zorro |
1994 | World Fairy Tale Series (TV Series) · as D'artagnan |
1994 | 801 T.T.S. Airbats (TV Series) · as Hiyama Sanshirou |
1994 | I'm Not an Angel! · as Bunta Kouno (voice) |
1994 | Phantom Quest Corp. (TV Series) · as Hakyô |
1994 | Phantom Quest Corp. · as Hakyô |
1994 | Genocyber (TV Series) · as Sakomizu |
1994 | Lord of Lords Ryu Knight (TV Series) · as Hittel |
1994 | Goal Field Hunter (TV Series) · as Terabayashi Shoutarou |
1994 | Montana Jones (TV Series) · as Hamid |
1994 | Genocyber · as Sakomizu (voice) |
1994 | Natsuki Crisis (TV Series) · as Kyōtarō Himuro |
1993 | Black Jack (TV Series) · as Tokio Umetani (voice) |
1993 | Please Save My Earth · as Mikuro Yakushimaru (voice) |
1993 | Please Save My Earth (TV Series) · as Mikuro Yakushimaru (voice) |
1993 | Aoki Densetsu Shoot (TV Series) · as Akihiko Himuro |
1993 | Suikoden: Demon Century · as Takateru Suga (voice) |
1993 | Ninja Scroll · as Yurimaru (voice) |
1993 | Ocean Waves · as Yutaka Matsuno (voice) |
1993 | Nintama Rantarou (TV Series) · as Hansuke Doi |
1993 | The Irresponsible Captain Tylor (TV Series) · as Ru Baraba Dom |
1992 | Download: Devil's Circuit · as Sid (voice) |
1992 | D-1 Devastator (TV Series) · as 谷田辺了 |
1992 | Wedge of Love (TV Series) · as Riki (voice) |
1992 | Bastard!! (TV Series) |
1992 | Ranma ½: The Movie 2, Nihao My Concubine · as Mousse |
1992 | |
1992 | Princess Army: Wedding Combat (TV Series) · as Yuuya Hashiba |
1992 | The Weathering Continent · as Tieh (voice) |
1992 | Genesis Survivor Gaiarth (TV Series) · as The General |
1991 | Here is Greenwood (TV Series) · as Shinobu Tezuka (voice) |
1991 | Ranma ½: The Movie, Big Trouble in Nekonron, China · as Mousse (voice) |
1991 | Flaming Rugby Boy: Dodge Danpei (TV Series) · as Nikaidou |
1991 | Izumo (TV Series) · as Izumo (voice) |
1991 | Tenkû Senki Shurato: Sousei e no Antou (TV Series) · as Shurato |
1991 | Detonator Orgun (TV Series) · as Knock |
1991 | Nadia: The Secret of Blue Water - The Motion Picture · as Falt (voice) |
1991 | Blazing Transfer Student (TV Series) · as Noboru Takizawa (voice) |
1991 | Future GPX Cyber Formula (TV Series) · as Jotaro Kaga |
1991 | Mischievous Twins: The Tales of St. Clare's (TV Series) · as Melia Glance |
1990 | The Hakkenden: Legend of the Dog Warriors (TV Series) · as Shino Inuzuka (voice) |
1990 | Robin Hood (1990) (TV Series) · as Gilbert |
1990 | Magical Angel Sweet Mint (TV Series) · as Marble |
1990 | Goddamn (TV Series) · as Hans Schultz |
1990 | Nadia: The Secret of Blue Water (TV Series) · as Fejto (voice) |
1989 | Demon Hunter · as Shou Kurogane (voice) |
1989 | Yawara! A Fashionable Judo Girl (TV Series) · as Matsuda / Eiji (voice) |
1989 | Darkness of the Sea, Shadow of the Moon (TV Series) · as Katsuyuki Touma (voice) |
1989 | Dash! Yonkuro (TV Series) |
1989 | Angel Cop · as Tachihara (voice) |
1989 | Angel Cop (TV Series) · as Tachihara |
1989 | Shinderera ekusupuresu · as Yuji Shimano |
1989 | Ranma ½ (TV Series) · as Mousse (voice) |
1989 | Madö King Granzört (TV Series) · as Grunwald |
1989 | Legend of Heavenly Sphere Shurato (TV Series) · as Shurato |
1989 | Nightsong of Splendor (TV Series) |
1989 | Jushin Liger (TV Series) · as Murakawa |
1988 | Hades Project: Zeorymer Separation · as Masato Akitsu (voice) |
1988 | Hades Project Zeorymer (TV Series) · as (voice) |
1988 | Armor Hunter Merowlink (TV Series) · as Pfc Cepres |
1988 | Dragon Century (TV Series) |
1988 | OISHINBO (TV Series) · as Ryôzô Ôkaboshi |
1988 | Let's Go! Anpanman (TV Series) · as Cast |
1988 | Zillion: Burning Night · as J.j. (voice) |
1988 | Spirit Warrior (TV Series) · as Kujaku (voice) |
1988 | Balthus: Tia's Radiance · as Eud (voice) |
1988 | F (TV Series) · as Gunma Akagi (voice) |
1987 | The Samurai · as Takeshi Chimatsuri |
1987 | Toi · as Shouji (voice) |
1987 | Red Photon Zillion (TV Series) · as Jj |
1987 | ESPer Mami (TV Series) · as Manager |
1987 | Sunny Ryoko (TV Series) · as Regent |
1987 | Maryu Senki (TV Series) · as 錦繍 (voice) |
1987 | Little Women (1987) (TV Series) · as John Marty |
1986 | Saint Seiya (TV Series) · as Fenrir |
1986 | Anmitsu princess (TV Series) · as Additional Voices |
1986 | Castle in the Sky · as Additional Voices (voice) |
1986 | Call Me Tonight · as Hayata (voice) |
1986 | Baribari Densetsu (TV Series) · as Chinpira |
1986 | Story of Pollyanna, Girl of Love (TV Series) · as John (youth Era) |
1985 | Ninja Senshi Tobikage (TV Series) · as Soldier |
1985 | Star Magician Magical Emi (TV Series) · as Customer A (voice) |
1985 | Touch (TV Series) · as Nakajima |
1971 | Kamen Rider (TV Series) · as Momotaros (voice) |