Pedro Fontán
Timothy Bottoms
Margaret
Taryn Power
Nurse (as Diana Eagle)
Pilar Alcón
José Canalejas
Eduardo Bea
Teresa del Olmo
Alicia González
José Yepes
Jorge Bosso
Beatriz Savón
José Bastida
Defensor
Barta Barri
First Mate Lemaris
Jared Martin
Paco Catalá
Fabián Conde
Alfonso de la Vega
Alfredo Enríquez
José Ramón Pardo
Luís Zagalo
Professor Timothy Wallace
Ray Milland
Gérard Tichy
Jill
Carole James
Hospital Killer
Jack Taylor
Dr. Moore
León Klimovsky
Charly Bravo
Porto, Night Watchman
Víctor Israel
Director
Amando de Ossorio
Screenplay
Original Music Composer
Manel Santisteban
Producer
José Frade
Director of Photography
Raúl Pérez Cubero
Editor
José Antonio Rojo
Art Direction
José Luis Galicia
Makeup Artist
Fernando Florido
Hairstylist
Dolores García Rey
Construction Coordinator
Vincent D. White
Sound Recordist
Joseph Cherry
Special Effects
Frank Cuttlet
Thomas Urbant
Joseph Vargas
Camera Operator
Antonio Sáiz Palazón
Still Photographer
Alex Digest
Assistant Camera
Salvador Gómez Calle
Script Supervisor
Erika Szel