[4] Eldest son of rural teacher Aurora Galván Valenzuela (1901-1992)[5] 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.

[6] Del Castillo was a rebellious youth, and on the instructions of his mother, in 1952 he joined the Mexican seminary for foreign missions in Mexico City and was a member of the Congregation of the missionaries of Guadalupe, priestly studies that he abandoned in 1953.

However, his mother encouraged him to study acting and in 1954 he joined the Film Institute, theater and broadcasting of the National Association of actors (ANDA) directed by Andrés Soler.

[8] In 1976, he made the argument of the film Víbora caliente, under the direction of Fernando Durán Rojas, as well as be part of the cast.

He also appeared on the small screen in Abismo de pasión (2012), Lo que la vida me robó (2013–14), Que te perdone Dios (2015), and Tres veces Ana (2016).