On screen
Cast
19 credited performers
Burt Lancaster
Professor
Silvana Mangano
Marquess Bianca Brumonti
Helmut Berger
Konrad Huebel
Claudia Marsani
Lietta Brumonti
Stefano Patrizi
Stefano
Elvira Cortese
Erminia
Philippe Hersent
Doorman
Guy Tréjan
Art Dealer
Artwork unavailable
Jean-Pierre Zola
Blanchard
Umberto Raho
Police Inspector Bernai
Enzo Fiermonte
Police Inspector
Romolo Valli
Michelli
Artwork unavailable
George Clatot
Character not listed
Valentino Macchi
Character not listed
Vittorio Fanfoni
Character not listed
Lorenzo Piani
Character not listed
Margherita Horowitz
Maid
Claudia Cardinale
Professor's Wife (uncredited)
Dominique Sanda
Professor's Mother (uncredited)