The Double

Ewa Aulin

Lucia

Jean Sorel

Giovanni

Lucia Bosè

Nora Tosatti

Silvano Tranquilli

Roger

Sergio Doria

Eddie Kennan

Antonio Pierfederici

Professor Bergamo

Bruno Boschetti

Balestra

Giacomo Rossi Stuart

Giovanni's Brother

Pupo De Luca

The Police Commissioner

Marilù Tolo

Marie

Bruno Alias

Waiter (uncredited)

Giuseppe Marrocco

Man in Tennis Club (uncredited)