Joana Giner is a Spanish voice actress from Tavernes Blanques, a town in Valencia, Spain. Born around 2004, she began her voice acting career at the age of four and later pursued formal training at the Black Noise dubbing school in Valencia while also studying Fine Arts at university. Giner started working professionally in dubbing in 2021, with her early credits including Blu-ray dubbing work for the iconic anime series Naruto Shippuden.

Her major voice roles in animation and anime include the character Mia in the third and fourth seasons of Lego Friends: Chicas con una misión, a role she has described as a challenge due to the character's adventurous and confident nature. In the anime Bakugan, she voices the character Chosho, a role that provided her with significant interpretative weight and allowed her to explore comedic and impulsive traits. Giner also contributed additional voices for the first season of the series Velma, a project based on the Scooby-Doo franchise.

Giner has demonstrated a pattern of working on high-profile anime and animation productions early in her career, including participation in the Naruto franchise. She has noted the rapid evolution of her skills in voice technique and self-critique, adapting to the demands of anime dubbing where emotional expressions can be radical and character designs vary in expressiveness. Her notable achievements include landing her first substantial interpretative role with Chosho in Bakugan, a series she continued to record for as of August 2025. She has expressed a long-term aspiration to voice a character for Disney or to work on a musical-themed project.