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Toshihiko Seki

Voice Actor

Toshihiko Seki is a prolific Japanese voice actor, singer, and narrator whose credits include Iruka Umino on Naruto, the title role in the 2023 series Pluto, and Duo Maxwell within Mobile Suit Gundam Wing, and he holds a voice credit in the One Piece franchise whose specific character has not been publicly documented.

Role: Voice Actor
Nationality: Japanese
Years Active: 1983-present
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One Piece Role

Available sources do not identify which character Toshihiko Seki voiced within the One Piece anime, so no specific scene or arc can be attributed to him here. His name is nonetheless linked to the franchise's credits, placed alongside the very large body of Japanese-language voice work, numbering well over two hundred roles by the mid-2000s, that defines the rest of his career. Confirming the exact part would require production records beyond his general biography.

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Career and Notable Roles

Born June 11, 1962, Seki lends his voice to Iruka Umino on Naruto, Genjo Sanzo across the Saiyuki franchise, Kaien Shiba within Bleach, and Duo Maxwell from Mobile Suit Gundam Wing, alongside villainous parts such as Rau Le Creuset in Mobile Suit Gundam SEED, Legato Bluesummers, and Muzan Kibutsuji in Demon Slayer. Animage readers ranked him the ninth favorite voice actor in 2004, largely on the strength of the Le Creuset role, and he later became closely tied to Imagin Momotaros in the Kamen Rider Den-O franchise before starring as the title character of Pluto in 2023.

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Frequently Asked Questions

Who does Toshihiko Seki voice?

Toshihiko Seki voices Iruka Umino in Naruto, Kaien Shiba in Bleach, and Duo Maxwell in Mobile Suit Gundam Wing. He also plays Genjo Sanzo across the Saiyuki franchise.

What are Toshihiko Seki's most famous roles?

Animage readers ranked Toshihiko Seki the ninth favorite voice actor in 2004, largely on the strength of his villainous performance as Rau Le Creuset in Mobile Suit Gundam SEED. He is also known for voicing Muzan Kibutsuji in Demon Slayer and Legato Bluesummers.

Does Toshihiko Seki have a confirmed character in One Piece?

No specific character has been identified for Toshihiko Seki within the One Piece anime. His name is linked to the franchise's credits alongside a body of Japanese-language voice work numbering well over two hundred roles by the mid-2000s.

What title role did Toshihiko Seki play in the 2023 anime Pluto?

Toshihiko Seki starred as the title character in the 2023 series Pluto. He also became closely tied to the character Imagin Momotaros in the Kamen Rider Den-O franchise.

When was Toshihiko Seki born?

Toshihiko Seki was born on June 11, 1962. He has worked in the voice acting industry since 1983.

Sources & Information

This content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.

Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:

  • Movie pages: theatrical posters and key visuals, credited to Toei Animation and Toei Company.
  • Game pages: official box art for the One Piece console and mobile games, credited to Bandai Namco.
  • Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Eiichiro Oda.

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