Rebeca Zadra is a Brazilian voice actress known for her work in dubbing, primarily providing the Brazilian Portuguese voices for characters in animated series, films, and video games. Her professional activity is centered in the Brazilian dubbing industry.

Zadra has been involved in dubbing for several notable anime and animation projects. She voices the character Minori Asagiri in the Brazilian Portuguese dub of the anime series Mob Psycho 100 II. In the anime film One Piece Stampede, she is the voice of the character Ann. Her work also extends to the Netflix original anime series Pacific Rim: The Black, where she dubs the character Mei in the Brazilian Portuguese version. Additionally, she has provided the voice for Kyōka Izumi in the Brazilian Portuguese dub of the animated series Thus Spoke Kishibe Rohan.

Beyond these roles, her dubbing career encompasses a variety of other projects. She is the voice of Mary Jane Watson in the video game Marvel's Spider-Man 2 and has voiced characters in other major franchises, such as Perona in One Piece and Toralei in the Monster High animated series. Her work also includes dubbing for live-action productions, where she has voiced Mina Hess in the series Cloak & Dagger and Billie Eilish's character Eva in the series Swarm.