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 Stefano Oppedisano Taxi driver Ada Pometti Telephone operator Marie Louise Sinclair Film starlet Cinzia De Carolis Lori Werner Pochath Manuel 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 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) Gennarino Pappagalli Man in the Terzi's Institute (uncredited) Franco Ukmar Policeman - Speaks with Morsella About Food (uncredited)