Top 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
Directed by
Juan Ibáñez, Jack Hill
Written by
José Méndez, Octavio Ocampo, Jack Hill, Luis Enrique Vergara
Produced by
Luis Enrique Vergara