José Luis González de León
Director
Jack Hill
Director
Juan Ibáñez
Director
Juan Ibáñez
Writer
Raúl Domínguez
Director of Photography
Enrico C. Cabiati
Original Music Composer
Karl Schanzer
Writer
Luis Enrique Vergara
Writer
Luis Enrique Vergara
Producer
Austin McKinney
Director of Photography
Raúl J. Casso
Editor
José Méndez
Art Direction
Octavio Ocampo
Art Direction
Raúl Cárdenas
Set Decoration
Vicente Tostado
Costume Design
Maria Elena Ortiz
Hairstylist
Antonio Ramírez
Makeup Artist
José Luis Cerrada
Production Manager
Enrique Gordillo
Special Effects
Boris Karloff
Prof. John Mayer
Enrique Guzmán
Dr. Paul Rosten
Christa Linder
Laura
Maura Monti
Dr. Isabel Reed
Yerye Beirute
Thomas
Tere Valez
Nancy
Griselda Mejía
Prostitute
Sergio Kleiner
Alien
Mariela Flores
Deaf-mute victim
Tito Novaro
Gen. Nord
Sergio Virel
Villager
Nathanael León
Villager
Carlos León
Villager
Rosángela Balbó
Martha - mayor's wife
Julián de Meriche
Visiting Dignitary
Arturo Fernández
