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