Richard Basehart

Doctor Stefano Luprandi

Eddie Constantine

Franco Cesari

Walter Chiari

Giuseppe Rasi

Antonella Lualdi

Giovanna, the nurse

Valentina Cortese

Luprandi's wife

Arnoldo Foà

The boss

Luigi Tosi

Police commissioner

Ferruccio Amendola

Journalist

Emma Baron

Mother of Giuseppe

Gino Bramieri

SAI Employee

Roberto Bruni

Stefano colleague

Gil Delamare

Marini

Bianca Doria

Widow

Nico Pepe

Lawyer who meets Luprandi

Ernesto Sabbatini

Mazzanti