Amando de Ossorio
Director José Frade
Producer

Timothy Bottoms
Pedro Fontán Taryn Power
Margaret Jared Martin
First Mate Lemaris Ray Milland
Professor Timothy Wallace Gérard Tichy
Carole James
Jill Jack Taylor
Hospital Killer León Klimovsky
Dr. Moore Charly Bravo
Víctor Israel
Porto, Night Watchman Pilar Alcón
Nurse (as Diana Eagle) José Canalejas

Manel Santisteban
Original Music Composer José Antonio Rojo
Editor Amando de Ossorio
Screenplay Raúl Pérez Cubero
Director of Photography Joseph Cherry
Sound Recordist Antonio Sáiz Palazón
Camera Operator Alex Digest
Still Photographer Salvador Gómez Calle
Assistant Camera