Kasi Hollowell is an American voice actor and audiobook narrator known for her work in English dubs of anime series. Her career in voice performance began during her pursuit of a Bachelor of Fine Arts in Musical Theatre, a time when she started doing English dubbing work with Sentai Filmworks. This educational background in musical theatre and her early start in dubbing laid the foundation for her professional voice acting career, through which she has accumulated credits with both Sentai Filmworks and Crunchyroll.

Hollowell has built an extensive portfolio of voice roles across a variety of anime series. She voices Olivia vel Vine in the series The Greatest Demon Lord is Reborn as a Typical Nobody and provides the voice for Kir Zonne in Lucifer and the Biscuit Hammer. Other notable roles include Rena in the series AFTERLOST, the character Jenna in Trapped in a Dating Sim, and Julie Guile in Gosick. She is also heard in major productions such as Blue Lock, where she voices帝襟杏里, and One Piece. Her range extends to roles in Fruits Basket, A Certain Scientific Accelerator, and Kantai Collection, among others. Additional credits include characters in Tamako Market, How Heavy Are the Dumbbells You Lift?, The Ambition of Oda Nobuna, Love, Chunibyo & Other Delusions, and Maid Sama.

Beyond her anime work, Hollowell has established a significant career as an audiobook narrator, having voiced over seventy-five to more than one hundred titles. This aspect of her career allows her to utilize her vocal training to create distinct character voices and connect with stories in a manner similar to her work in animation. Her voice is characterized by a versatile range, capable of delivering high-energy, youthful performances as well as deeper, more mature tones, and she is proficient in various accents including British and American regional dialects.

Throughout her career, which spans over a decade in voiceover, Hollowell has frequently collaborated with other voice actors in the industry. Data from her credited roles indicates that she has most often worked alongside voice actor Brittney Karbowski, with numerous shared projects. Her body of work reflects a sustained presence in the field of anime dubbing and audiobook narration, building on her foundational experience in regional theatre.