Filo from The Rising of the Shield Hero is voiced by Rina Hidaka in the original Japanese version and Brianna Knickerbocker in the English dub. Both actresses became strongly associated with the character thanks to Filo’s energetic personality, emotional innocence, and dramatic transformations throughout the series.
Japanese Voice Actor: Rina Hidaka

Date of Birth
June 15, 1994
About Rina
Rina Hidaka is a Japanese voice actress known for voicing cheerful, emotionally expressive, and youthful characters in anime and games. Her performance as Filo helped make the character one of the standout mascots of The Rising of the Shield Hero franchise.
As Filo, Hidaka balances childlike excitement with fierce loyalty and emotional sincerity. Her vocal performance shifts naturally between playful comedy scenes and intense battle moments, especially during Filo’s transformations between her Filolial and human forms.
Hidaka began acting at a young age and steadily built a major anime career across fantasy, romance, and action series.
Hometown
Chiba Prefecture, Japan
Career Highlights
Rina Hidaka became widely recognized during the 2010s for major roles in fantasy and romance anime.
Some of her best-known performances include:
- Filo — The Rising of the Shield Hero
- Last Order — A Certain Magical Index
- Silica — Sword Art Online
- Milim Nava — That Time I Got Reincarnated as a Slime
- Arisu Sakayanagi — Classroom of the Elite
- Claire Kagenou — The Eminence in Shadow
- Nagisa Shiota (young) — Assassination Classroom
- Yume Irido — My Stepmom’s Daughter Is My Ex
Her portrayal of Filo became especially popular among viewers because of the character’s combination of innocence, humor, and overwhelming combat power.
Full Current Filmography
The following list reflects documented credits from publicly available sources and may not be exhaustive.
Anime Television
- The Rising of the Shield Hero — Filo (2019–present)
- Sword Art Online — Silica (2012–present)
- That Time I Got Reincarnated as a Slime — Milim Nava (2018–present)
- A Certain Magical Index — Last Order (2008–present)
- Classroom of the Elite — Arisu Sakayanagi (2017–present)
- The Eminence in Shadow — Claire Kagenou (2022–present)
- Assassination Classroom — Young Nagisa Shiota (2015)
- Ro-Kyu-Bu! — Tomoka Minato (2011)
- Black Bullet — Enju Aihara (2014)
- My Stepmom’s Daughter Is My Ex — Yume Irido (2022)
Anime Films
- Sword Art Online Progressive film series — Silica
- That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond — Milim Nava
- Isekai Quartet the Movie: Another World — Filo
Video Games
- Blue Archive — Voice roles
- Granblue Fantasy — Various characters
- Princess Connect! Re:Dive — Voice roles
- Azur Lane — Various characters
- Sword Art Online game series — Silica
Critical Reception
Rina Hidaka’s performance as Filo has been widely praised for capturing the character’s energetic charm without making her feel overly exaggerated. Fans frequently highlight how effectively she transitions between comedic scenes and emotionally serious moments.
Critics of The Rising of the Shield Hero often point to Filo as one of the series’ emotional centers, and Hidaka’s performance played a major role in making the character memorable rather than simply comic relief.
Our Sources
Behind The Voice Actors – Filo cast listing (https://www.behindthevoiceactors.com/characters/The-Rising-of-the-Shield-Hero/Filo/)
Wikipedia – Rina Hidaka biography and filmography (https://en.wikipedia.org/wiki/Rina_Hidaka)
Anime Characters Database – Shield Hero voice cast (https://www.animecharactersdatabase.com/voiceactorsin.php?id=106220)
The Rising of the Shield Hero character listings (https://anibase.net/en/anime-characters/l7A2L/The-Rising-of-the-Shield-Hero)
Social Media
Official Agency Profile: https://www.office-osawa.com/talent/hidaka-rina/
English Voice Actor: Brianna Knickerbocker

Date of Birth
December 17, 1993
About Brianna
Brianna Knickerbocker is an American voice actress and singer known for major roles in anime, video games, and animation. Her portrayal of Filo in The Rising of the Shield Hero became one of her most recognizable fantasy anime performances thanks to the character’s energetic personality and emotional sincerity.
As Filo, Knickerbocker delivers a performance filled with enthusiasm, innocence, and comedic charm while still handling the character’s emotional moments with warmth and sincerity. Her work helped make Filo one of the most memorable supporting characters in the series’ English dub.
In addition to voice acting, Knickerbocker has released original music and performed vocals for game and anime-related projects.
Hometown
Not publicly documented.
Career Highlights
Brianna Knickerbocker became widely recognized during the late 2010s through major anime and gaming performances.
Some of her most notable roles include:
- Filo — The Rising of the Shield Hero
- Rem — Re:Zero − Starting Life in Another World
- Hu Tao — Genshin Impact
- Wiz — KonoSuba
- Elaine — The Seven Deadly Sins
- Sakura Yamauchi — I Want to Eat Your Pancreas
- Rin Toyama — New Game!
- Kanao Tsuyuri — Demon Slayer
Her role as Filo stands out because of the balance between playful comedy and genuine emotional attachment the character develops throughout the series.
Full Current Filmography
The following list reflects publicly documented credits and may not be exhaustive.
Anime Television
- The Rising of the Shield Hero — Filo (2019–present)
- Re:Zero − Starting Life in Another World — Rem
- KonoSuba — Wiz
- Demon Slayer — Kanao Tsuyuri
- The Seven Deadly Sins — Elaine
- New Game! — Rin Toyama
- Sword Art Online Alternative: Gun Gale Online — Karen Kohiruimaki
- Cells at Work! — Platelet
- Fire Force — Tamaki Kotatsu
- Edens Zero — Homura Kōgetsu
Anime Films
- I Want to Eat Your Pancreas — Sakura Yamauchi
- Demon Slayer film appearances — Kanao Tsuyuri
- KonoSuba: Legend of Crimson — Wiz
Video Games
- Genshin Impact — Hu Tao
- Fire Emblem Heroes — Various characters
- Persona 5 Royal — Additional Voices
- Final Fantasy VII Rebirth — Additional Voices
- Dragon Ball: The Breakers — Voice roles
Critical Reception
Brianna Knickerbocker’s performance as Filo has been praised by dub viewers for capturing the character’s lively energy without losing emotional authenticity. Fans frequently highlight her comedic timing, especially during Filo’s playful interactions with Naofumi and Raphtalia.
Critics and viewers also noted how effectively Knickerbocker handled Filo’s more emotional scenes, helping the character feel like an important emotional anchor within the party rather than simply comic relief.
Her energetic vocal style became one of the defining aspects of Filo’s English-language portrayal.
Our Sources
Behind The Voice Actors – Filo cast listing (https://www.behindthevoiceactors.com/characters/The-Rising-of-the-Shield-Hero/Filo/)
Wikipedia – Brianna Knickerbocker biography and filmography (https://en.wikipedia.org/wiki/Brianna_Knickerbocker)
Official Brianna Knickerbocker website (https://www.briannaknicofficial.com/)
Anime News Network encyclopedia entry for The Rising of the Shield Hero (https://www.animenewsnetwork.com/encyclopedia/anime.php?id=21213)
Social Media
X / Twitter: https://x.com/briannanoellek
Instagram: https://www.instagram.com/briannanoellek/
Official Website: https://www.briannaknicofficial.com/
