Margalida Castro is a Colombian theatre and television actress, born 19 November 1943 in San Gil, Santander. Ms Castro grew up in Bogotá and studied music as a child. She entered Universidad Nacional de Colombia to study Architecture; she also studied flute and was part of the university's orchestra, but she dropped her studies after meeting playwright , with whom she would be married for six years. Her debut on Colombian television would be on the 1967 series La tercera palabra, directed by . Ever since she would appear in dozens of theatre plays and Colombian telenovelas and television series.