Person file · Acting

Toshihiko Seki

Born 1962-06-11Sendai, Japon

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.

Screen work

Movies & roles

2026Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita HiCosmo Gavarion System Voice / Gavarion Trigger System Voice 2026Super Space Sheriff Gavan Infinity: Jo-Chaku CourseGavarion Trigger System Voice (voice)2025Demon Slayer: Kimetsu no Yaiba Infinity CastleMuzan Kibutsuji (voice)2024Nintama Rantarō: Invincible Master of the Dokutake NinjaHansuke Doi (voice)2023The Birth of Kitaro: The Mystery of GeGeGeKitarou's Father (voice)2023Black Clover: Sword of the Wizard KingConrad Leto (voice)2022Demon Slayer: Kimetsu no Yaiba - Asakusa ArcMuzan Kibutsuji (voice)2021My Hero Academia: World Heroes' MissionEddie Soul (voice)2021Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero ChroniclesMomotaros (voice) / Kamen Rider Den-O (voice)2020Kamen Rider Den-O: The Birth of Pretty Den-O!Momotaros (voice)2019Demon Slayer: Kimetsu no Yaiba - Sibling's BondMuzan Kibutsuji (voice)2018Kamen Rider Heisei Generations ForeverMomotaros / Kamen Rider Den-O Sword Form (voice)2017Mazinger Z: InfinityTetsuya Tsurugi (voice)2017Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-Momotaros 2017Kamen Rider × Super Sentai: Ultra Super Hero WarsMomotaros - Kamen Rider Den-O Sword Form (voice)2016Naruto OVA 12: The Day Naruto Became HokageIruka Umino (voice)2015Mobile Suit Gundam: The Origin II - Artesia's SorrowChar Aznable (voice)2014Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super SentaiKamen Rider Den-O Sword Form (voice)2013Hunter x Hunter: The Last MissionWing (voice)2013Higurashi: When They Cry - OutbreakKyousuke Irie (voice)2012Road to Ninja: Naruto the MovieIruka Umino (voice)2012Kamen Rider × Super Sentai: Super Hero WarsMomotaros - Kamen Rider Den-O Sword Form (voice)2011Detective Conan: Quarter of SilenceShogo Hikawa (voice)2011OOO, Den-O, All Riders: Let's Go Kamen RidersMomotaros / Kamen Rider Den-O Sword Form (voice)