Cast 34
James Franciscus
Carlo Giordani
Karl Malden
Franco Arnò
Catherine Spaak
Anna Terzi
Pier Paolo Capponi
Police Supt. Spini
Horst Frank
Dr. Braun
Rada Rassimov
Bianca Merusi
Aldo Reggiani
Dr. Casoni
Carlo Alighiero
Dr. Calabresi
Vittorio Congia
Righetto (cameraman)
Ugo Fangareggi
Gigi the Loser
Tom Felleghy
Dr. Esson
Emilio Marchesini
Dr. Mombelli
Fulvio Mingozzi
Spimi's man
Corrado Olmi
Morsella
Pino Patti
Barber
Umberto Raho
Manuel's ex-lover
Jacques Stany
Prof. Manera
Stefano Oppedisano
Taxi driver
Ada Pometti
Telephone operator
Marie Louise Sinclair
Film starlet
Werner Pochath
Manuel
Tino Carraro
Prof. Fulvio Terzi
Ettore Arena
Billiard Player (uncredited)
Aristide Caporale
Smoker in the Billiard Hall (uncredited)
Giovanni Di Benedetto
Chief of Police Salmi (uncredited)
Margherita Horowitz
Lori's Babysitter (uncredited)
Giuseppe Marrocco
Man at Table in the Saint Peter's Club (uncredited)
Gennarino Pappagalli
Man in the Terzi's Institute (uncredited)
Aldo Parenti
(uncredited)
Franco Ukmar
Policeman - Speaks with Morsella About Food (uncredited)
Crew 50
Dario Argento
Story
Dardano Sacchetti
Story
Dario Argento
Screenplay
Dario Argento
Director
Luciano Vittori
Visual Effects
Ennio Morricone
Original Music Composer
Erico Menczer
Director of Photography
Salvatore Argento
Producer
Carlo Du Bois
Production Accountant
Carlo Leva
Production Design
Bryan Edgar Wallace
Screenplay
Angelo Iacono
Production Manager
Eugenio Fiori
Boom Operator
Roberto Pariante
Assistant Director
Franco Pedacchia
Assistant Production Design
Carlo Vinciguerra
Electrician
Romeo Costantini
Assistant Set Decoration
Renato Mascagno
First Assistant Camera
Cesarina Casini
First Assistant Editor
Maurizio La Monica
Second Assistant Camera
Maurizio Migalizzi
Key Grip
Roberto Brega
Camera Operator
Alberico Loreti
Best Boy Electric
Francesco Rachini
Electrician
Carlo Leva
Costume Design
Pierantonio Mecacci
Makeup Artist
Vincenzo Marchetti
Assistant Makeup Artist
Mario Ronchetti
Sound
Roberto Bertozzi
Electrician
Luca Sabatelli
Costume Design
Luigi Cozzi
Story
Giuseppe Ferranti
Makeup Artist
Romano Pampaloni
Sound Recordist
Rodolfo Flibotti
Gaffer
Massimo Anzellotti
Sound Effects Editor
Arturo de Castelterlango
First Assistant Camera
Ettore Migalizzi
Grip
Firmino Palmieri
Still Photographer
Maura Turchi
Hairstylist
Lamberto Verdenelli
Property Master
Bruno Nicolai
Conductor
Luciano Vittori
Title Designer
Sergio Fraticelli
Assistant Editor
Carlo Du Bois
Administration
Roberta Leoni
Production Secretary
Luciano Anzellotti
Sound Effects
Franco Fraticelli
Editor
Giuseppe Mangogna
Production Manager