The iconic half-demon hero Inuyasha is voiced by Kappei Yamaguchi in the original Japanese version and Richard Ian Cox in the English dub. Both actors brought distinct energy to the character, helping define Inuyasha as one of anime’s most recognizable series.
Kappei Yamaguchi — Japanese Voice of Inuyasha

Date of Birth
May 23, 1965
About Kappei
Kappei Yamaguchi is a veteran Japanese voice actor celebrated for his expressive range and energetic performances. Known for voicing spirited, quick-tempered, and emotionally layered characters, he gave Inuyasha a perfect balance of arrogance, humor, and vulnerability. His portrayal helped establish Inuyasha as a fan-favorite protagonist across multiple generations.
Hometown
Fukuoka, Japan
Career Highlights
- Inuyasha – Inuyasha (main role across the original series and The Final Act)
- Death Note – L
- Detective Conan – Shinichi Kudo / Kaito Kid
- One Piece – Usopp
- Ranma ½ – Ranma Saotome (male form)
Yamaguchi’s career spans decades, and he is widely regarded as one of the most recognizable voices in anime.
Full Current Filmography
Below is a structured list of verifiable major anime voice roles (not exhaustive but based on documented credits from reliable sources):
Television Anime
- 1989 – Ranma ½ — Ranma Saotome (male)
- 2000–2004 – Inuyasha — Inuyasha
- 2009–2010 – Inuyasha: The Final Act — Inuyasha
- 2006 – Death Note — L
- 1996–present – Detective Conan — Shinichi Kudo / Kaito Kid
- 1999–present – One Piece — Usopp
- 2011 – Persona 4: The Animation — Teddie (Kuma)
Films & Related Media
- Inuyasha Movies — Inuyasha (multiple films)
Note: This list reflects widely documented credits from major sources and may not include every minor or guest role.
Critical Reception
Kappei Yamaguchi’s performance as Inuyasha is often praised for capturing the character’s dual nature—brash and combative on the surface, yet deeply emotional underneath. His ability to switch between comedic outbursts and heartfelt moments is frequently cited as a key reason the character resonates so strongly with audiences.
Our Sources
- Inuyasha (TV series) cast list (https://en.wikipedia.org/wiki/Inuyasha_%28TV_series%29)
- IMDb full cast and credits (https://www.imdb.com/title/tt0290223/fullcredits/)
- Kappei Yamaguchi profile (https://en.wikipedia.org/wiki/Kappei_Yamaguchi)
- Inuyasha movie cast listings (https://en.wikipedia.org/wiki/Inuyasha_the_Movie%3A_Swords_of_an_Honorable_Ruler)
Social Media
No verified official public social media accounts were found from reliable sources.
Richard Ian Cox — English Voice of Inuyasha

Date of Birth
October 3, 1973
About Richard
Richard Ian Cox is a Canadian voice actor widely recognized for his work in anime dubs produced in Vancouver. His portrayal of Inuyasha is known for its sharp intensity, sarcastic delivery, and emotional depth. Cox’s performance helped make the English version of Inuyasha resonate strongly with Western audiences, particularly through its long run on television.
Hometown
St. Asaph, Wales (raised in Canada)
Career Highlights
- Inuyasha – Inuyasha (main role across the original series, movies, and The Final Act)
- Mobile Suit Gundam SEED – Kira Yamato
- Bleach – Ichigo Kurosaki (Ocean dub)
- Ranma ½ – Ranma Saotome (male, later dub)
- Death Note – L (English dub)
Cox has been a central figure in English-language anime dubbing since the late 1990s, often cast in lead roles requiring strong emotional range and intensity.
Full Current Filmography
Below is a structured list of verifiable major voice roles (based on documented credits; may not be exhaustive):
Anime (English Dub)
- 2000–2004 – Inuyasha — Inuyasha
- 2009–2010 – Inuyasha: The Final Act — Inuyasha
- Inuyasha Films — Inuyasha
- 2002–2003 – Mobile Suit Gundam SEED — Kira Yamato
- 2006 – Death Note — L (Viz Media dub)
- 2006–2012 – Bleach — Ichigo Kurosaki (Ocean Group dub)
- 1990s–2000s – Ranma ½ — Ranma Saotome (male, later episodes/OVAs)
Western Animation & Other Voice Work
- Ninjago: Masters of Spinjitzu — Additional voices
- Various roles in Canadian animated television productions
Note: This list reflects documented major roles from reputable sources and may not include every minor or guest appearance.
Critical Reception
Richard Ian Cox’s take on Inuyasha is often praised for capturing the character’s rough-edged personality while still conveying vulnerability in quieter moments. Fans frequently highlight his dynamic chemistry with Kagome’s voice actor in the English dub, as well as his ability to deliver both comedic frustration and dramatic intensity convincingly.
Our Sources
- Inuyasha (TV series) cast list (https://en.wikipedia.org/wiki/Inuyasha_%28TV_series%29)
- Richard Ian Cox profile (https://en.wikipedia.org/wiki/Richard_Ian_Cox)
- IMDb full credits (https://www.imdb.com/name/nm0185168/)
- Viz Media dub credits and cast listings (https://www.viz.com/)
Social Media
- Twitter/X: https://twitter.com/richardiancox
- Instagram: https://www.instagram.com/richardiancox/
