Margarita Miriam Díaz Aroca (born 4 March 1962, in Madrid) is a Spanish actress and television presenter.

Her first appearance on-screen was in the Spanish TV music program Aplauso in 1979 as a contestant on the section La juventud baila, being placed in third position (25.000 pesetas) .

In 1990 she participated as a singer in an album with 11 songs called Chicos of the brand CBS, which has as a hit Merlin the Spanish version of Shattered Dreams by the English group Johnny Hates Jazz In movies, Pedro Almodóvar selected her to play a small role as a radio hostess for the deaf in the film High Heels (1991).

Her consecration as an actress would come with Clara's character in the Academy Award winning picture Belle Époque (1992), by Fernando Trueba.

She also participated as an actress in the TV comedy La casa de los líos (1996-1999) of Antena 3, with Arturo Fernandez, in the sitcom ¡Ala... Dina!