92 minutos
El Santo, the masked Mexican wrestler, investigates a series of kidnappings. He discovers that the mysterious Doctor Caroll is using the victims as part of his experiments to develop an army of monsters. Naturally, El Santo is able to overcome them all - with wrestling!
El Santo
Santo, el Enmascarado de Plata
Norma Mora
Susana Mendoza
Rubén Rojo
Ricardo Carbajal
Roxana Bellini
Gloria Mendoza
Claudio Brook
Dr. Karol
José Luis Jiménez
Professor Galvan
Víctor Velázquez
Inspector Fernandez
Jorge Mondragón
Police Chief
Fernando Osés
Henchman
Nathanael León
Henchman
Concepción Martínez
Anciana encuentra cámara
Myron Levine
Doctor
Cesáreo Cruz
Juan Garza
Beny Galán
Wrestler (as Benny Galan)
Cavernario Galindo
Wrestler
El Tigre del Ring
Wrestler
Victorio Blanco
Velador museo / Museum Caretaker (uncredited)
Vicente Lara
Hombre lobo / Wolf man (uncredited)
Rubén Márquez
Espectador lucha libre (uncredited)
Antonio «Pícoro» Padilla
Ring Announcer (uncredited)
