Carlo Giordani
Franco Arnò
Anna Terzi
Police Supt. Spini
Dr. Braun
Bianca Merusi
Dr. Casoni
Dr. Calabresi
Righetto (cameraman)
Gigi the Loser
Dr. Esson
Dr. Mombelli
Spimi's man
Morsella
Barber
Manuel's ex-lover
Prof. Manera
Taxi driver
Telephone operator
Film starlet
Lori
Manuel
Prof. Fulvio Terzi
Billiard Player (uncredited)
Smoker in the Billiard Hall (uncredited)
Chief of Police Salmi (uncredited)
Lori's Babysitter (uncredited)
Man at Table in the Saint Peter's Club (uncredited)
Man in the Terzi's Institute (uncredited)
(uncredited)
Policeman - Speaks with Morsella About Food (uncredited)