 Eldest son of rural teacher Aurora Galván Valenzuela (1901-1992) and Eduardo Del Castillo-Negrete Rivera (1907–1948), firefighter who lost his life in the fire of the hardware store called "La Sirena" in Mexico City.His brothers are Federico (actor, 1936-1980) and Leopoldo.When he was young, his parents divorced and in 1945 his mother remarried.