Waldemar Daninsky
Paul Naschy
Elvira
Gaby Fuchs
First Female Victim
María Luisa Tovar
Dr. Hartwig
Julio Peña
La sombra de Satán
Carlos Aured
Ruperto Ares
Tramp / Monster
Eduardo Chappa
Wandesa Dárvula de Nadasdy
Patty Shepard
Inspector Marcel
Andrés Resino
Genevieve Bennett
Barbara Capell
Elizabeth Daninsky
Yelena Samarina
Pierre
José Marco
Pierre's Girl
Betsabé Ruiz
Muller
Barta Barri
Distraught Man
Luis Gaspar
Screenplay
Original Music Composer
Antón García Abril
Director
León Klimovsky
Producer
Salvadore Romero
Hans Munkel
Director of Photography
Leopoldo Villaseñor
Editor
Antonio Gimeno
Special Effects
Antonio Molina