Calificación
Reparto

Lon Chaney Jr.
The Mummified Werewolf

Yerye Beirute
Prof. Janning

George Mitchell André
Dr. Frederick Munson

Fred Hoffman
Detective Hammond

Rosita Arenas
Ann Taylor (as Rosa Arenas)

Ramón Gay
Dr. Edmund Redding

Alfredo Wally Barrón
Henchman

Chuck Niles
Douglas Banks

Steve Conte
The Hired Thief

Yolanda Varela
Woman In Apartment (as Landa Varle)

Germán Valdés
Man in Wax Museum

Jorge Mondragón
Old Scientist

Crox Alvarado
Redding's Aide