Ana Luisa Peluffo
Laura Moreno / Vicky
Carlos Cores
Dr. Enrique Molina
Rubén Rojo
Martín
Fanny Schiller
La Mariposa
Francisco Jambrina
Dr. Andrade
Consuelo Monteagudo
Srita. Ocampo
Manuel Arvide
Insp. Jiménez
Enrique García Álvarez
Director de sanatorio
José Muñoz
Policía
José Chávez
Ferrocarrilero asesinado (uncredited)
Guillermo Hernández
Mesero
Cecilia Leger
Taquillera
Inés Murillo
Paciente de doctor
Beatriz Ramos
Recepcionista en sanatorio
Joaquín Roche
Don Carlitos
Ricardo Sánchez de la Barquera
Miguel Ángel
Alfonso Corona Blake
Director
Óscar J. Brooks
Story
Alfonso Corona Blake
Screenplay
Fernando Galiana
Writer
Sergio Magaña Hidalgo
Dialogue
Óscar J. Brooks
Producer
Ernesto Enríquez
Producer
Manuel Esperón
Music
Jack Draper
Director of Photography
Rafael Ceballos
Editor
Guillermo Castillo
Casting
José Rodríguez Granada
Production Design
Dolores Camarillo
Makeup Artist
María E. Salazar
Hairstylist
Enrique L. Morfín
Production Supervisor
Américo Fernández
Assistant Director
Roberto Camacho
Sound Recordist
Luis Fernández
Sound Recordist
Armando Stahl
Special Effects
Urbano Vázquez
Camera Operator
Luis García
Lighting Technician
Eufemio Rivera
Assistant Editor
Pedro López
Script Supervisor