
Billy Kametz was an American voice and stage actor who voiced Rui in the English dub of "Demon Slayer: Kimetsu no Yaiba" (studio Ufotable). He was widely known for dubbing anime and video games before his death in 2022 at age 35.
Kametz supplied the English voice of Rui in "Demon Slayer: Kimetsu no Yaiba" (studio Ufotable). The role sat among a substantial body of anime dubbing work that defined his career, joining a roster of prominent leading parts he took on during a relatively short but busy span as a performer. His portrayal added to a reputation built on voicing memorable figures across Japanese animation adapted for English-speaking audiences.
Born on March 22, 1987, Kametz launched his voice acting career in 2016 and quickly became a familiar presence in anime and video game dubbing. He gave English voices to Josuke Higashikata in "JoJo's Bizarre Adventure: Diamond Is Unbreakable," Takuto Maruki in "Persona 5 Royal," Naofumi Iwatani in "The Rising of the Shield Hero," Colt in "Brawl Stars," and Ferdinand von Aegir in the "Fire Emblem" series. These leading and supporting roles established him as one of the more recognizable English dub actors of his generation.
Beyond his screen and game credits, Kametz also worked as a stage actor, performing in live theater alongside his dubbing career. He died of colorectal cancer on June 9, 2022, at the age of 35, bringing an early end to a career that had grown steadily prominent over roughly six years.

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Billy Kametz died of colorectal cancer on June 9, 2022, at the age of 35. His death brought an early end to a career that had grown steadily prominent over roughly six years.
Billy Kametz voiced Rui in the English dub of Demon Slayer: Kimetsu no Yaiba. His other roles included Josuke Higashikata in JoJo's Bizarre Adventure: Diamond Is Unbreakable, Takuto Maruki in Persona 5 Royal, Naofumi Iwatani in The Rising of the Shield Hero, Colt in Brawl Stars, and Ferdinand von Aegir in the Fire Emblem series.
Billy Kametz supplied the English voice of Rui in Demon Slayer: Kimetsu no Yaiba, produced by studio Ufotable. The role sat among a substantial body of anime dubbing work that defined his career.
Billy Kametz launched his voice acting career in 2016 and quickly became a familiar presence in anime and video game dubbing. He remained active until his death in 2022.
Yes, beyond his screen and game credits Billy Kametz also worked as a stage actor, performing in live theater alongside his dubbing career. He was an American voice and stage actor.
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.
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