Tânia Gaidarji is a Brazilian actress, voice actress, and announcer, widely recognized as one of the most prominent voices in Brazilian dubbing. Born Tânia Regina Gaidarji on October 13, 1963, in São Paulo, her path to voice acting was shaped by an early passion for the arts. Although she initially studied architecture at FAU Santos, a profound experience watching a production of Hamlet confirmed her true vocation. After completing her degree, she pursued theater at the renowned Escola Macunaíma in São Paulo, an education that laid the foundation for her future work in interpretation and even teaching body awareness to other actors.

Her professional entry into the world of voice began in 1993 when she won a public contest for radio announcers. This led to her pivotal entry into dubbing in 1994, when she was cast as the voice of Chun-Li in the live-action film Street Fighter: The Battle for the Final. This role was a turning point, leading her to reprise the character in the anime Street Fighter II V and establishing her presence in the industry during a time when such anime were at the height of their popularity in Brazil.

Gaidarji's career is most famously defined by her long-standing role as Bulma in the Portuguese dub of the Dragon Ball franchise, a character she has voiced for over two decades. Her work spans nearly the entire saga, including Dragon Ball, Dragon Ball Z, Dragon Ball GT, Dragon Ball Kai, Dragon Ball Super, and the films Dragon Ball Z: Battle of Gods, Dragon Ball Super: Broly, and Dragon Ball Super: Super Hero, as well as the live-action film Dragon Ball Evolution. This extensive and consistent performance has made her voice synonymous with the character for Brazilian audiences.

Beyond her iconic work in Dragon Ball, Gaidarji has an extensive and versatile filmography in anime dubbing. She voiced the title character Birdy Cephon Altera in Birdy the Mighty and Karin Kikuhara in Stratos 4 Advance. She also provided the voice for Bianca in the film Pokémon Heroes: Latias & Latios and for Akemi in Urotsukidōji: Legend of the Overfiend. Her other notable anime roles include Kasumi Tendo in Ranma ½, Chun-Li in Street Fighter II V, Amy Wong in the early seasons of Futurama, Professor Izumi Curtis in Fullmetal Alchemist, Irumi Zaoldyeck in Hunter × Hunter, and Yuuko Ichihara in ×××HOLiC. Her work extends to live-action series and films as well, such as voicing Donna Pinciotti in That '70s Show and Emily Charlton in The Devil Wears Prada.

Throughout her career, Gaidarji has been celebrated for her versatility, moving seamlessly between comedic and dramatic roles. Her voice is also featured in the acclaimed Brazilian animated series Irmão do Jorel, where she voices the characters Dona Danuza and Débora. Beyond her performance work, she is noted for having helped solve a long-standing mystery for Brazilian Dragon Ball Z fans by identifying Rodrigo Firmo and his mother Sarah Regina as the singers of the series' iconic first opening and ending themes. Her enduring contribution to Brazilian popular culture has solidified her status as a beloved and respected figure in the world of dubbing.