"Wrestler vs mad-scientist with werewolf serum."
Blue Demon
as Blue Demon (as Blue Demon)
Jaime Fernández
as Prof. Lauro Carral
Nathanael León
as Wrestler (as Nathanael León Moreno)
Mario Orea
as Dr. Gruber
Fernando Osés
as El Sanguinario
Carlos Suárez
as Inspector
Rosa María Vázquez
as Marina Gruber
Altia Michel
as Waitress
Cesar Gay
as Prof. Rafael
Guillermo Hernández
as Ursus (as Guillermo Hernández 'Lobo Negro')
Ivonne Govea
as Woman in Forest (as Ivonne Gobea)
Victor Jordan
as Man in Forest
Ray Mendoza
as Wrestler
Henry Pilusso
as Wrestler (as Pilusso)
Margarito Luna
as Matías
Joe Carson
Chano Urueta
Director
Álex Phillips Jr.
Cinematography
Luis Enrique Vergara
Producer
Rafael García Travesí
Writer
Jorge Pérez
Music
José Juan Munguía
Editor
Gerardo Aguilera
Art Direction
Jorge García Besné
Executive Producer
Set Decoration
