Brandon Hearnsberger is an American voice actor and stage performer based in Texas, recognized for his extensive work in English dubs of anime series, particularly those produced by Houston-based studios like Sentai Filmworks. He has built a substantial career in voiceover since the early 2000s, alongside a parallel career in live theater, notably as a company member at Houston's Alley Theatre.

Hearnsberger's path to voice acting was grounded in formal theater training. He earned a Bachelor of Arts in Theatre from the University of Houston, where he studied under influential mentors including dialect specialist Sidney Berger. This foundation in performance and dialects has been central to his approach to character work. He has described acting as a craft requiring "obsession" and a "commitment and dedication that is rare".

His voice acting career features a wide array of roles across various anime genres. He is likely best known for his performance as Wazukyan, the enigmatic and manipulative leader of the Ganja Corps, in the second season of Made in Abyss, titled Made in Abyss: The Golden City of the Scorching Sun. Other significant anime roles include Ichigo Saitō in Oshi no Ko, Rei in the 2022 Urusei Yatsura, Tonio in Call of the Night, Perv Asshat in The Eminence in Shadow, and Mikaros in Helck. He has also taken on leading roles such as the King in I'm Quitting Heroing and Albert in The Most Heretical Last Boss Queen: From Villainess to Savior.

His career spans a wide range of credits from the mid-2000s to the present. Early roles included parts in Clannad, Ghost Stories, Kiba, and Pumpkin Scissors. More recent work demonstrates his continued presence in the industry with roles in Dark Gathering, Farming Life in Another World, Ninja Kamui, Suicide Squad ISEKAI, and The Vexations of a Shut-In Vampire Princess. Beyond anime, Hearnsberger has lent his voice to numerous video games, including Star Ocean: The Divine Force, Fire Emblem Heroes, Wasteland 3, and SMITE.

Throughout his voice acting career, Hearnsberger has frequently collaborated with a consistent pool of directors and fellow actors within the Texas-based voiceover community. He has worked under the direction of Kyle Colby Jones on multiple projects, including the English dub of Made in Abyss: The Golden City of the Scorching Sun, for which Jones served as the ADR director and scriptwriter. His credits regularly feature alongside other prominent Texas-based voice actors such as Luci Christian, Brittney Karbowski, Greg Ayres, John Swasey, and Monica Rial, indicating a sustained presence in this regional talent pool.