Jesus Franco Manera Director, Screenwriter Howard Vernon Dr. Orloff Actor Conrado San Martín Inspector Tanner Actor Ricardo Valle Morpho Lodner Actor Diana Lorys Wanda Bronsky , Melissa Actor Perla Cristal Arne Actor María Silva Dany Actor Mara Laso Irma Gold Actor Venancio Muro Jean Rousseau Actor Felix Dafauce Inspector Actor Manuel Vázquez Klein Actor Leo Lax Producer A.L. Mariaux Producer Serge Newman Producer Godofredo Pacheco Cinematographer Alfonso Santacana Film Editing