Joana Castro is a Portuguese actress and voice actor known for her work in dubbing, particularly for anime and animated series for the Portuguese market. Born in Lisbon, Portugal, on June 27, 1985, she is the sister of fellow voice actor Mafalda Luís de Castro. Her body of work encompasses a wide range of characters in both film and television.

Castro's voice acting credits include major roles in several prominent anime series. She is the Portuguese voice for Misa in the Star Wars: Visions episode Akakiri, a contribution that places her within the broader Star Wars universe. Her repertoire also includes providing the Portuguese voice for the iconic character Asuka Langley Soryu in Neon Genesis Evangelion and voicing Misato Katsuragi in the same series. She has been the voice for numerous characters in the Dragon Ball franchise, including Cheelai in Dragon Ball Super: Super Hero, as well as Videl, Vados, and others in Dragon Ball Super. Other notable anime credits include roles in Tenkai Knights as Beni Walker and Toxsa Dalton, and in The Knight in the Area, where she voiced multiple characters such as Ayaka Mine and Mai Murasaki.

Beyond anime, Castro's dubbing career is extensive and includes a variety of characters in animated and live-action productions. She voiced the character Addison Wells in the Zombies film series for Disney Channel, and Émilie Agreste in Miraculous: As Aventuras de Ladybug - O Filme. Her work also spans series such as Power Rangers: Cosmic Fury, where she voiced Amelia Jones, the Pink Ranger, and Monster High, where she was the voice of Howleen Wolf. She has also contributed her voice to animated series like Trolls: TrollsTopia, providing the voice for Val Thundershock and performing theme songs, and Barbie: It Takes Two, voicing the characters Pandora and Daisy Kostopoulos.

Information on recurring collaborations with specific directors or studios is not readily available in the provided sources, but her credits list work with several Portuguese dubbing studios, including Iyuno-SDI, On Air, Trigital, and Pim Pam Pum. While specific awards for her voice acting are not mentioned, her long list of credits across major international franchises in both anime and general animation highlights her standing and consistent activity within the Portuguese dubbing industry.