Fernando Di Leo
Director Tiziano Longo
Producer Armando Novelli
Producer

Klaus Kinski
Dr. Francis Clay Margaret Lee
Cheryl Hume Rosalba Neri
Anne Palmieri Jane Garret
Mara John Karlsen
Professor Osterman Gioia Desideri
Ruth Giangiacomo Elia
The Gardener (as John Ely) Monica Strebel
Nurse Helen Fernando Cerulli
Chaffeur Sandro Rossi
Policeman Giulio Baraghini
Policeman Ettore Geri
Inspector

Fernando Di Leo
Screenplay Nino Latino
Screenplay Silvano Spadaccino
Original Music Composer Amedeo Giomini
Editor Franco Villa
Director of Photography Romano Pampaloni
Sound Recordist Giacomo Simonelli
Conductor Antonio de Castel Largo
Assistant Camera Antonio Minutolo
Assistant Camera Claudio Morabito
Camera Operator Raffaele Benedetti
Sound Recordist