About
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.
Filmography
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi2026 · Cosmo Gavarion System Voice / Gavarion Trigger System Voice
Super Space Sheriff Gavan Infinity: Jo-Chaku Course2026 · Gavarion Trigger System Voice (voice)
Demon Slayer: Kimetsu no Yaiba Infinity Castle2025 · Muzan Kibutsuji (voice)
Nintama Rantarō: Invincible Master of the Dokutake Ninja2024 · Hansuke Doi (voice)
The Birth of Kitaro: The Mystery of GeGeGe2023 · Kitarou's Father (voice)
Black Clover: Sword of the Wizard King2023 · Conrad Leto (voice)
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc2022 · Muzan Kibutsuji (voice)
My Hero Academia: World Heroes' Mission2021 · Eddie Soul (voice)
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles2021 · Momotaros (voice) / Kamen Rider Den-O (voice)
Kamen Rider Den-O: The Birth of Pretty Den-O!2020 · Momotaros (voice)
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond2019 · Muzan Kibutsuji (voice)
Kamen Rider Heisei Generations Forever2018 · Momotaros / Kamen Rider Den-O Sword Form (voice)
Mazinger Z: Infinity2017 · Tetsuya Tsurugi (voice)
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-2017 · Momotaros
Kamen Rider × Super Sentai: Ultra Super Hero Wars2017 · Momotaros - Kamen Rider Den-O Sword Form (voice)
Naruto OVA 12: The Day Naruto Became Hokage2016 · Iruka Umino (voice)
Mobile Suit Gundam: The Origin II - Artesia's Sorrow2015 · Char Aznable (voice)
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai2014 · Kamen Rider Den-O Sword Form (voice)
Hunter x Hunter: The Last Mission2013 · Wing (voice)
Higurashi: When They Cry - Outbreak2013 · Kyousuke Irie (voice)