Ana de Castro is a Spanish voice actress, singer, and broadcaster primarily known for her work in dubbing foreign-language content into Spanish for the Spanish market. While she has built a career voicing characters in various animated productions, the roles listed are from Spanish-language dubs, not original Japanese anime voice acting (seiyuu).

Her body of work is largely defined by voice roles in popular animation and video games. She is known for providing the Spanish voice for the character Tracer in the video game Overwatch, Molly in the animated series The Ghost and Molly McGee, and Hailey Banks in Hailey's On It!. In the anime industry, her contributions are specifically in the realm of Spanish dubbing for major streaming platforms and home video releases.

Castro has voiced several prominent characters in Spanish-dubbed versions of well-known anime series. In the Netflix original CGI series Resident Evil: Infinite Darkness, she is the Spanish voice for the character Claire Redfield. For the Netflix anime adaptation of the classic manga Bastard!! -Heavy Metal, Dark Fantasy-, she voices the character Tia Noto Yoko. In the film Looking for Magical DoReMi, a 20th-anniversary project of the Ojamajo Doremi series, she voices Reika Kawatani, one of the three adult protagonists on a journey of self-discovery.

Castro has also been involved in dubbing for the popular series Kakegurui. Records from the Spanish dubbing database indicate she voices both Itsuki Sumeragi and Sayaka Igarashi in the first season of the show. Another notable role is her performance as the main character, the Red Blood Cell (AE3803), in the Spanish dub of the educational comedy series Cells at Work!, a production handled by Coalise Estudio.

While a comprehensive list of recurring collaborations is not formally documented, her work on Cells at Work! for Coalise Estudio and her multiple roles within a single series like Kakegurui demonstrate her versatility and regular presence in the Spanish dubbing industry. Her notable achievements include being a consistent voice talent for major international franchises, lending her voice to characters in blockbuster video game series like Overwatch and major anime productions distributed globally by platforms like Netflix.