Gloria Castillo (born March 3, 1935) is an American stage and motion picture actress of the 1950s.
Castillo was born in Belen, New Mexico and graduated from the University of New Mexico in June 1954. She was featured in a production of the play Late Love in July 1954. The presentation was given by the Albuquerque, New Mexico Little Theater and later by the Pasadena Playhouse in Pasadena, California.
She was signed by MGM production manager Harry Joe Brown in 1954. She first appeared on television on the General Electric Theater (1954) and in an episode of I'm A Fool (1954). Later she was in episodes of
Disneyland (1959), The Millionaire (1959), and Zorro (1959).
She debuted in movies in 1955 with roles in The Night of the Hunter and The Vanishing American. Most frequently Castillo can be seen in sci-fi and B-movie films made in the late 1950s. Some of the titles in which she appears are Invasion of the Saucer Men (1957), Reform School Girl (1957), and Teenage Monster (1958).
Castillo married Hollywood writer, producer, and director Ellis Kadison. Her brother is actor Leo Castillo. Her second child is singer-composer Joshua Kadison. Castillo died on October 24, 1978, at the age of 45, of an extremely rare form of cancer.