Alighiero Noschese

Character: Luigi Gorletti

Enrico Montesano

Character: Valerio

Gastone Moschin

Character: Metello Bottazzi

Francesca Romana Coluzzi

Character: Reginella

Gianrico Tedeschi

Character: Police Commissioner Salvatore Mazzia

Janet Ågren

Character: Monica Gorletti

Isabella Biagini

Character: Cecilia

Vittorio De Sica

Character: Player in Venice casino

Angelo Infanti

Character: Claude Parmentier

Dolores Palumbo

Character: The Maid at van Laurent's

Piero Gerlini

Character: Police Commissioner Molinari

Salvatore Campochiaro

Character: The Servant at van Laurent's

Antonio La Raina

Character: Police Officer Caputo

Cesare Di Vito

Character: Police Officer

Irio Fantini

Character: Journalist

Alessandro Perrella

Character: Police Officer on the Train

Bianca Castagnetta

Character: Madame van Laurent

Alberigo Donadeo

Character: Curious Onlooker (uncredited)

Giuseppe Marrocco

Character: Waiter questioned by the police (uncredited)

Tonino Micheluzzi

Character: The sleeping Passenger (uncredited)

Gennarino Pappagalli

Character: Man at Restaurant (uncredited)