Reparto
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
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
Cinzia De Carolis
Lori
Werner Pochath
Manuel
Tino Carraro
Prof. Fulvio Terzi
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)
Franco Ukmar
Policeman - Speaks with Morsella About Food (uncredited)
