Rollenname: Carlo Giordani
Rollenname: Franco Arno
Rollenname: Anna Terzi
Rollenname: Police Supt. Spini
Rollenname: Dr. Braun
Rollenname: Bianca Merusi
Rollenname: Dr. Casoni
Rollenname: Dr. Calabresi
Rollenname: Righetto (cameraman)
Rollenname: Gigi the Loser
Rollenname: Dr. Esson
Rollenname: Dr. Mombelli
Rollenname: Spimi's man
Rollenname: Morsella
Rollenname: Barber
Rollenname: Manuel's ex-lover
Rollenname: Prof. Manera
Rollenname: Telephone operator
Rollenname: Lori
Rollenname: Manuel
Rollenname: Prof. Fulvio Terzi
Rollenname: Chief of Police Salmi (uncredited)
Rollenname: Lori's babysitter (uncredited)
(story)
Screenplay, Story
producer
Tino Carraro (Prof. Fulvio Terzi)
Ugo Fangareggi (Gigi the Loser)
Pier Paolo Capponi (Police Supt. Spini)
Jacques Stany (Prof. Manera)
Pino Patti (Barber)
Karl Malden (Franco Arno)
Horst Frank (Dr. Braun)
Werner Pochath (Manuel)
Umberto Raho (Manuel's ex-lover)
Vittorio Congia (Righetto (cameraman))
James Franciscus (Carlo Giordani)
Aldo Reggiani (Dr. Casoni)