Cast 18

1. 

   Paul Naschy

   Hector Doriani / Alex Doriani / Frankenstein's Monster / Mr. Hyde / Phantom of the Opera / Waldemar Daninsky the Werewolf / Quasimodo / The Devil

2. 

   Caroline Munro

   Carmen

3. 

   Howard Vernon

   Eric

4. 

   Fernando Hilbeck

   Father Damián

5. Joseph Garco

   Biker Robber

6. Roberta Kuhn

7. Carmen Plate

   Woman

8. 

   Mariano Vidal Molina

   Civil Guard

9. Pascual Marco

10. Tamara Greys

    Bridgett

11. 

    Mabel Ordóñez

    Lola

12. 

    Isabel Prinz

    Lorena

13. Nuria Lucas

    Robber Girl

14. Sergio Molina

    Adrián (as Serge Mills)

15. 

    Cris Huerta

    Zacarías

16. Emilio A. Pina

    Civil Guard 2

17. 

    Malena Gracia

    Woman (uncredited)

18. Chema Gómez

    (uncredited)

Crew 18