"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
Miguel de Grandy
Paul Benson
Amando de Ossorio
Director
José Frade
Producer
Manel Santisteban
Original Music Composer
José Antonio Rojo
Editor
Screenplay
Raúl Pérez Cubero
Director of Photography
Joseph Cherry
Sound Recordist
Fernando Florido
Makeup Artist
Antonio Sáiz Palazón
Camera Operator
José Luis Galicia
Art Direction
Dolores García Rey
Hairstylist
Thomas Urbant
Special Effects
Joseph Vargas
Frank Cuttlet
Vincent D. White
Construction Coordinator
Alex Digest
Still Photographer
Salvador Gómez Calle
Assistant Camera
Erika Szel
Script Supervisor
