Paul Naschy

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

Caroline Munro

Carmen

Howard Vernon

Eric

Fernando Hilbeck

Father Damián

Joseph Garco

Biker Robber

Roberta Kuhn

Carmen Plate

Woman

Mariano Vidal Molina

Civil Guard

Pascual Marco