Fernando Bilbao
El monstruo
Andrés Mejuto
Doctor Frankenstein
Guillermo Montesinos
Quasimodo
Paul Naschy
El Hombre Lobo
Miguel Ángel Valero
Draculín
Lorenzo Ramírez
Guía del museo
Rosa Redondo
Señorita Sara
Ana Ángeles García
Astrid (voice) (uncredited)
Amelia Jara
Jaime (voice) (uncredited)
Marisa Marco
Eva (voice) (uncredited)
José Moratalla
El monstruo / Guía del museo (voice) (uncredited)
Rafael Alonso Naranjo Jr.
Eduardo (voice) (uncredited)
Julio Núñez
El hombre lobo (voice) (uncredited)
Ana María Saizar
Señorita Sara- voz (uncredited)
María Dolores Díaz
Señorita (voz) (uncredited)
