Carlo Giordani

James Franciscus

Acting

Franco Arnò

Karl Malden

Acting

Anna Terzi

Catherine Spaak

Acting

Police Supt. Spini

Pier Paolo Capponi

Acting

Dr. Braun

Horst Frank

Acting

Bianca Merusi

Rada Rassimov

Acting

Dr. Casoni

Aldo Reggiani

Acting

Dr. Calabresi

Carlo Alighiero

Acting

Righetto (cameraman)

Vittorio Congia

Acting

Gigi the Loser

Ugo Fangareggi

Acting

Dr. Esson

Tom Felleghy

Acting

Dr. Mombelli

Emilio Marchesini

Acting

Spimi's man

Fulvio Mingozzi

Acting

Morsella

Corrado Olmi

Acting

Barber

Pino Patti

Acting

Manuel's ex-lover

Umberto Raho

Acting

Prof. Manera

Jacques Stany

Acting

Taxi driver

Stefano Oppedisano

Acting

Telephone operator

Ada Pometti

Acting

Walter Pinelli

Acting

Sascha Helwin

Acting

Film starlet

Marie Louise Sinclair

Acting

Martial Boschero

Acting

Lori

Cinzia De Carolis

Acting

Manuel

Werner Pochath

Acting

Prof. Fulvio Terzi

Tino Carraro

Acting

Billiard Player (uncredited)

Ettore Arena

Acting

Smoker in the Billiard Hall (uncredited)

Aristide Caporale

Acting

Chief of Police Salmi (uncredited)

Giovanni Di Benedetto

Acting

Lori's Babysitter (uncredited)

Margherita Horowitz

Acting

Man at Table in the Saint Peter's Club (uncredited)

Giuseppe Marrocco

Acting

Man in the Terzi's Institute (uncredited)

Gennarino Pappagalli

Acting

(uncredited)

Aldo Parenti

Acting

Policeman - Speaks with Morsella About Food (uncredited)

Franco Ukmar

Acting