Credits
Cast
Boris Karloff
Matthias Morteval
Julissa
Lucy Durant
Andrés García
Charles Beasley
José Ángel Espinosa 'Ferrusquilla'
Dr. Emery Horvath (as Ángel Espinoza)
Beatriz Baz
Cordelia Rash
Quintín Bulnes
Ivar Morteval
Manuel Alvarado
Morgenstern Morteval
Arturo Fernández
Fodor
Carmen Velez
Felipe de Flores
Fernando Saucedo
Estuardo Mora
José Luis G. de León
Victor Jordan
José Antônio Garcia
Art
Raúl Cárdenas
Set Decoration
Costume & Make-Up
Tony Ramirez
Makeup Artist
Tostada
Wardrobe Supervisor
Directing
José Luis González de León
Co-Director
Juan Ibáñez
Director
Jack Hill
Director, Screenplay
Stim Segar
Other
Editing
Ángel Camacho
Editor
Sound
Enrico C. Cabiati
Music
Writing
José Méndez
Screenplay, Art Direction
Octavio Ocampo
Screenplay, Art Direction
Luis Enrique Vergara
Screenplay, Producer