Eris Boreas Greyrat, the fiery swordswoman from Mushoku Tensei: Jobless Reincarnation, is voiced by Ai Kakuma in Japanese and Lindsay Seidel in the English dub. Both actresses are praised for capturing Eris’s explosive temper, emotional vulnerability, and gradual growth from a violent noble child into a determined warrior. (behindthevoiceactors.com)
Japanese Voice Actor: Ai Kakuma
Ai Kakuma voices Eris Boreas Greyrat in the Japanese version of Mushoku Tensei. Her energetic and emotionally expressive performance perfectly matches Eris’s aggressive personality and heartfelt emotional development throughout the series. (behindthevoiceactors.com)
Date of Birth
September 9, 1988
About Ai
Ai Kakuma is a Japanese voice actress affiliated with Mausu Promotion. Since debuting in the early 2010s, she has become known for voicing energetic heroines, emotionally intense fantasy characters, and determined fighters across anime and gaming.
Her portrayal of Eris Boreas Greyrat is widely praised because of how naturally she balances Eris’s violent outbursts, comedic stubbornness, and emotional sincerity. As Eris matures throughout Mushoku Tensei, Kakuma’s performance evolves alongside the character, giving emotional weight to her personal growth and relationships.
Hometown
Fukuoka Prefecture, Japan
Career Highlights
- Eris Boreas Greyrat — Mushoku Tensei: Jobless Reincarnation
- Edelgard von Hresvelg — Fire Emblem: Three Houses
- Rossweisse — High School DxD
- Euphyllia Magenta — The Magical Revolution of the Reincarnated Princess
- Julis Alexia van Riessfeld — The Asterisk War
- Mari Kurihara — Prison School
- Aoi Koga’s rival/supporting roles in fantasy anime projects
- Norn — Arknights media projects
Full Current Filmography
The following list reflects documented major anime voice roles from publicly available sources and may not be exhaustive.
Television Anime
- Mushoku Tensei: Jobless Reincarnation — Eris Boreas Greyrat
- The Asterisk War — Julis Alexia van Riessfeld
- High School DxD — Rossweisse
- Prison School — Mari Kurihara
- The Magical Revolution of the Reincarnated Princess and the Genius Young Lady — Euphyllia Magenta
- Azur Lane — Prince of Wales
- Arifureta — Aiko Hatayama
- Twin Star Exorcists — Benio Adashino
- Yurikuma Arashi — Lulu Yurigasaki
- Selector Infected WIXOSS — Piruluk
- BanG Dream! — Additional Roles
Anime Films
- Mushoku Tensei Specials & OVAs — Eris Boreas Greyrat
- High School DxD Hero related projects — Rossweisse
Video Games
- Fire Emblem: Three Houses — Edelgard von Hresvelg
- Genshin Impact — Additional Japanese Voices
- Granblue Fantasy — Voice Roles
- Mushoku Tensei Game Adaptations — Eris Boreas Greyrat
Critical Reception
Ai Kakuma is praised for her emotional intensity and energetic acting style. Fans of Mushoku Tensei frequently highlight her portrayal of Eris as one of the anime’s strongest performances, especially during scenes that showcase the character’s emotional vulnerability beneath her aggressive personality.
Our Sources
Behind The Voice Actors – Eris Boreas Greyrat (https://www.behindthevoiceactors.com/tv-shows/Mushoku-Tensei-Jobless-Reincarnation/Eris-Boreas-Greyrat/)
Anime News Network Encyclopedia – Ai Kakuma (https://www.animenewsnetwork.com/encyclopedia/people.php?id=104799)
Mausu Promotion Official Profile (https://mausu.net/talent/kakuma-ai.html)
Mushoku Tensei Official Anime Website (https://mushokutensei.jp/)
Social Media
No verified official public social media accounts were found from public sources.
English Voice Actor: Lindsay Seidel
Lindsay Seidel voices Eris Boreas Greyrat in the English dub of Mushoku Tensei: Jobless Reincarnation. Her energetic and emotionally intense performance captures Eris’s fiery personality, explosive temper, and emotional growth throughout the series. (behindthevoiceactors.com)
Date of Birth
Lindsay Seidel’s exact birth date is not publicly documented.
About Lindsay
Lindsay Seidel is an American voice actress known for anime dubbing, video games, and emotionally expressive character performances. She frequently portrays energetic heroines, stubborn fighters, and emotionally layered fantasy characters.
Her portrayal of Eris Boreas Greyrat has been praised for balancing Eris’s violent comedic outbursts with her vulnerable emotional moments and gradual maturity. Fans of the English dub often highlight Seidel’s chemistry with the cast and her ability to make Eris feel both intimidating and lovable.
Hometown
Dallas, Texas, USA
Career Highlights
- Eris Boreas Greyrat — Mushoku Tensei: Jobless Reincarnation
- Nagisa Shiota — Assassination Classroom
- Akane Hiyama — Love Tyrant
- Nejire Hado — My Hero Academia
- Fiona Frost — Spy x Family
- Mira Konohata — Asteroid in Love
- Pochita — Chainsaw Man (certain media/additional projects)
- Additional roles — Fairy Tail
Full Current Filmography
The following list reflects documented major voice acting credits from publicly available sources and may not be exhaustive.
Anime
- Mushoku Tensei: Jobless Reincarnation — Eris Boreas Greyrat
- Assassination Classroom — Nagisa Shiota
- My Hero Academia — Nejire Hado
- Spy x Family — Fiona Frost
- Love Tyrant — Akane Hiyama
- Asteroid in Love — Mira Konohata
- Fairy Tail — Additional Voices
- Black Clover — Additional Roles
- Chainsaw Man — Additional Voices
- Blue Lock — Additional Voices
Video Games
- Fire Emblem Heroes — Various Characters
- Smite — Voice Roles
- Anime Mobile Games — Additional Voices
- Mushoku Tensei Game Adaptations — Eris Boreas Greyrat
ADR & Additional Work
- Voice direction and dubbing-related projects
- Convention appearances and anime panel events
Critical Reception
Lindsay Seidel is praised for her emotional intensity and energetic acting style. Fans of Mushoku Tensei frequently highlight her portrayal of Eris for preserving the character’s aggressive comedic energy while still making her emotional development feel sincere and impactful.
Our Sources
Behind The Voice Actors – Eris Boreas Greyrat (https://www.behindthevoiceactors.com/tv-shows/Mushoku-Tensei-Jobless-Reincarnation/Eris-Boreas-Greyrat/)
Behind The Voice Actors – Lindsay Seidel (https://www.behindthevoiceactors.com/Lindsay-Seidel/)
Crunchyroll – Mushoku Tensei English Dub Information (https://www.crunchyroll.com/)
Mushoku Tensei Official Anime Website (https://mushokutensei.jp/)
Social Media
X (Twitter): https://x.com/LindsaySeidelVO
Instagram: https://www.instagram.com/lindsayseidelvoice/
