Conversation Piece

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

Jean-Pierre Zola

Blanchard

Umberto Raho

Police Inspector Bernai

Enzo Fiermonte

Police Inspector

Romolo Valli

Michelli

George Clatot

Valentino Macchi

Vittorio Fanfoni

Lorenzo Piani

Margherita Horowitz

Maid

Claudia Cardinale

Professor's Wife (uncredited)

Dominique Sanda

Professor's Mother (uncredited)