Aoi Kanzaki, the dedicated caretaker and rehabilitation instructor at the Butterfly Mansion in Demon Slayer: Kimetsu no Yaiba, is voiced by Yuri Ehara in the original Japanese version and Reba Buhr in the English dub. Their performances helped bring warmth, determination, and hidden compassion to one of the series’ most underrated supporting characters.
JAPANESE VOICE ACTOR (YURI EHARA)

Date of Birth
Yuri Ehara’s full date of birth is not publicly documented through major official biographies and industry databases.
About Yuri
Yuri Ehara (江原 裕理) is a Japanese voice actress known for her work in anime, games, and dubbing productions. She gained widespread recognition among Demon Slayer fans for voicing Aoi Kanzaki, a former Demon Slayer Corps member who now works at the Butterfly Mansion helping injured swordsmen recover and return to duty.
Ehara’s portrayal captures Aoi’s strict attitude, hardworking personality, and underlying kindness, making the character a memorable presence throughout the series despite her limited screen time.
Hometown
Publicly verified information regarding Yuri Ehara’s hometown is not widely documented.
Career Highlights
Some of Yuri Ehara’s documented notable roles include:
- Aoi Kanzaki — Demon Slayer: Kimetsu no Yaiba
- Aoi Kanzaki — Demon Slayer: Swordsmith Village Arc
- Aoi Kanzaki — Demon Slayer: Hashira Training Arc
- Various anime, game, and dubbing roles throughout her career.
Full Current Filmography
The following list reflects documented credits available from public sources and may not be exhaustive.
Television Anime
- Demon Slayer: Kimetsu no Yaiba — Aoi Kanzaki
- Demon Slayer: Swordsmith Village Arc — Aoi Kanzaki
- Demon Slayer: Hashira Training Arc — Aoi Kanzaki
Anime Films
- Associated Demon Slayer franchise productions featuring Aoi Kanzaki.
Video Games
- Demon Slayer franchise game appearances featuring Aoi Kanzaki where credited.
Critical Reception
Fans of Demon Slayer often praise Yuri Ehara’s performance for balancing Aoi’s stern demeanor with her genuine concern for others. Her portrayal helps make Aoi one of the most relatable support characters in the Butterfly Mansion storyline.
Our Sources
- Behind The Voice Actors – Aoi Kanzaki (https://www.behindthevoiceactors.com/tv-shows/Demon-Slayer-Kimetsu-no-Yaiba/Aoi-Kanzaki/)
- AniBase – Aoi Kanzaki Character Profile (https://anibase.net/en/character/4xqg6/Aoi-Kanzaki)
- Meet The Voice Actors – Aoi Kanzaki (https://meetthevoiceactors.com/franchises/demon-slayer/aoi-kanzaki/)
ENGLISH VOICE ACTOR (REBA BUHR)

Date of Birth
Reba Buhr’s full date of birth is not publicly documented through major official biographies and industry databases.
About Reba
Reba Buhr is an American voice actress, singer, and writer known for her work in anime, animation, and video games. Over the course of her career, she has voiced characters across numerous popular franchises and has become known for portraying energetic, determined, and emotionally engaging characters.
In the English dub of Demon Slayer: Kimetsu no Yaiba, Buhr voices Aoi Kanzaki, bringing a perfect blend of strictness, concern, and sincerity to the Butterfly Mansion caretaker. Her performance highlights Aoi’s role as a mentor and supporter to Tanjiro, Zenitsu, and Inosuke during their recovery and training periods. (behindthevoiceactors.com)
Hometown
Publicly verified information regarding Reba Buhr’s hometown has not been widely documented.
Career Highlights
Some of Reba Buhr’s most notable roles include:
- Aoi Kanzaki — Demon Slayer: Kimetsu no Yaiba
- Myne — Ascendance of a Bookworm
- Kagura — Boruto: Naruto Next Generations
- Riko — Pokémon Evolutions
- Nikaido — Dorohedoro
- Rosemary — Pokémon Masters EX
- Mylene — Edens Zero
- Mirko (select game and promotional appearances) — My Hero Academia franchise (behindthevoiceactors.com)
Full Current Filmography
The following list reflects documented major credits from publicly available sources and may not be exhaustive.
Anime Series
- Demon Slayer: Kimetsu no Yaiba — Aoi Kanzaki
- Ascendance of a Bookworm — Myne
- Boruto: Naruto Next Generations — Kagura Karatachi
- Dorohedoro — Nikaido
- Edens Zero — Mylene
- BNA: Brand New Animal — Supporting Roles
- Cells at Work! — Supporting Roles
- The Seven Deadly Sins — Supporting Roles
Animated Series
- Glitch Techs — Miko Kubota
- The Ghost and Molly McGee — Supporting Roles
- Puppy Dog Pals — Supporting Roles
- Various Disney and streaming animation productions
Video Games
- Demon Slayer: The Hinokami Chronicles — Aoi Kanzaki
- Pokémon Masters EX — Rosemary
- Genshin Impact — Additional Voices
- Fire Emblem Heroes — Various Characters
- Cookie Run: Kingdom — Supporting Roles
- Multiple anime and mobile game adaptations
Critical Reception
Reba Buhr’s portrayal of Aoi Kanzaki has been praised for preserving the character’s balance of toughness and compassion. Fans frequently note how her performance makes Aoi feel both authoritative and caring, particularly during the Butterfly Mansion rehabilitation arc. Her work helps ensure that Aoi remains memorable despite having less screen time than many of the series’ main characters. (behindthevoiceactors.com)
Our Sources
- Behind The Voice Actors – Aoi Kanzaki (https://www.behindthevoiceactors.com/tv-shows/Demon-Slayer-Kimetsu-no-Yaiba/Aoi-Kanzaki/)
- Behind The Voice Actors – Reba Buhr (https://www.behindthevoiceactors.com/Reba-Buhr/)
- IMDb – Reba Buhr (https://www.imdb.com/name/nm4542222/)
- Official Website (https://www.rebabuhr.com)
Social Media
- Official Website: https://www.rebabuhr.com
- X (Official): https://x.com/RebaBuhr
- Instagram (Official): https://www.instagram.com/rebabuhr
- IMDb: https://www.imdb.com/name/nm4542222/
