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Portrait of Mario Castañeda

Mario Castañeda

Voice Actor

Mario Castañeda is a Mexican voice actor born in 1962 in Irapuato, Guanajuato. Active since 1983, he provides the Spanish dub voice of Shinjuro Rengoku in Demon Slayer.

Role: Voice Actor
Nationality: Mexican
Years Active: 1983-present
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Demon Slayer Role

Mario Castañeda voices Shinjuro Rengoku, the disillusioned former Flame Hashira and father of Kyojuro Rengoku, in the Spanish dub of Demon Slayer. His voice acting career began in 1983.
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Frequently Asked Questions

Which character does Mario Castañeda voice in Demon Slayer?

Castañeda voices Shinjuro Rengoku in the Spanish dub of Demon Slayer. It is the documented credit for this performer in the franchise.

Who is Shinjuro Rengoku, the role Mario Castañeda voices in Demon Slayer?

Shinjuro Rengoku is the disillusioned former Flame Hashira and father of Kyojuro Rengoku in Demon Slayer. Castañeda voices this character in the series' Spanish dub.

Which dub of Demon Slayer does Mario Castañeda perform in?

Castañeda performs in the Spanish dub of Demon Slayer rather than the original Japanese version. The role recorded for that cast is Shinjuro Rengoku.

When did Mario Castañeda begin working as a voice actor?

Castañeda began working as a voice actor in 1983. That career includes voicing Shinjuro Rengoku in the Spanish dub of Demon Slayer.

Who voices Shinjuro Rengoku in the Spanish dub of Demon Slayer?

Shinjuro Rengoku is voiced by Mario Castañeda in the Spanish dub of Demon Slayer. This is the documented credit for Castañeda within the franchise.

Sources & Information

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

Rights holders

All rights belong to their respective owners.

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 ufotable and Aniplex.
  • Game pages: official box art, credited to Sega, Aniplex, and other publishers.
  • Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Koyoharu Gotouge.

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