Directed by Jaime Salvador Writing Credits (in alphabetical order) Ramón Obón ... (writer) Adolfo Torres Portillo ... (writer)Cast (in credits order) John Carradine John Carradine ... Dr. Halback Regina Torné Regina Torné Miguel Ángel Álvarez Miguel Ángel Álvarez ... (as Miguel Angel Alvarez) Guillermo Zetina Guillermo Zetina Andrés García Andrés García ... (as Andres Garcia) Isela Vega Isela Vega Gloria Munguía Gloria Munguía ... (as Gloria Munguia) Ángel Di Stefani Ángel Di Stefani ... (as Angel Distefani) Laura Ferlo Laura Ferlo Sílvia Villalobos Sílvia Villalobos Queta Carrasco Queta Carrasco ... (as Enriqueta Carrasco) Jose Antonio Garcia Jose Antonio Garcia Carlos Suárez Carlos Suárez Produced by Jorge García Besné ... executive producer Luis Enrique Vergara ... producerMusic by Gustavo César Carrión Cinematography by Alfredo Uribe Film Editing by José Juan Munguía Art Direction by José Méndez Octavio Ocampo