Marta Tamarit Martorell is a Spanish voice actress born in Madrid who has built a prolific career in dubbing since the early 1980s. She is the daughter of fellow voice actress Marta Martorell, placing her within a family dedicated to the profession. Tamarit entered the world of dubbing through work as a production assistant on the film E.T. the Extra-Terrestrial, a role that led to her being encouraged to pursue acting professionally. She studied at the Madrid theatre institute while also pursuing business studies, ultimately dedicating herself to voice acting.

Tamarit works actively in both Spanish and Catalan, providing voices for a wide range of media including animation, live-action film and television, and commercial voiceovers. She has become particularly well-known as the regular Spanish dubbing voice for several major Hollywood actresses, including Meg Ryan, Jodie Foster, Melanie Griffith, and Jennifer Jason Leigh. Among her extensive film work, she has cited her dubbing of Jodie Foster in The Silence of the Lambs and Meg Ryan in You've Got Mail as particularly significant roles.

Within the realm of animation and genre productions, Tamarit has contributed her voice to a number of notable projects, including several anime titles that were dubbed for the Spanish market. Her credits from the 1980s include the role of Jelna Flarestar in the 1985 science fiction OVA Cosmo Police Justy. She also voiced Clarissa MacDougal in the Lensman anime adaptation. In the space opera series Space Pirate Captain Harlock, she provided the voice for the character Yuki. Her work also extended to the films Andromeda Stories, where she played Queen Liliya in 1984, and the controversial Urotsukidōji franchise, in which she voiced the character Akemi Ito. These roles demonstrate her involvement in bringing various Japanese animated works to Spanish-speaking audiences during a formative period for anime distribution in Spain.

Beyond her work in Japanese animation, Tamarit's voice can be heard in numerous other productions. Her filmography includes Spanish dubs for animated features such as Pulgarcita, The Swan Princess, and Balto, as well as dubbing live-action actresses in films like The Paper, Boogie Nights, and I Know What You Did Last Summer. She has expressed a particular comfort and preference for working in the genres of cinema and television series. Tamarit has described her profession as a box of surprises and values the variety it brings to her daily life, while also noting the challenges of maintaining creative investment in a role where the work is not always visible to the public.