Doctor Stefano Luprandi
Richard Basehart
Franco Cesari
Eddie Constantine
SAI Employee
Gino Bramieri
Stefano colleague
Roberto Bruni
Aldo De Franchi
Marini
Gil Delamare
Widow
Bianca Doria
Arturo Gallea
Clara
Franca Gandolfi
Chairman of the committee
Nino Marchesini
Lawyer Cesare Valloni
Nino Marchetti
Dino Maronetto
Giuseppe Rasi
Walter Chiari
Lawyer who meets Luprandi
Nico Pepe
Arrigo Peri
Mazzanti
Ernesto Sabbatini
Wando Tres
Giovanna, the nurse
Antonella Lualdi
Luprandi's wife
Valentina Cortese
The boss
Arnoldo Foà
Anna, Cesari's woman
Flora Lillo
Police commissioner
Luigi Tosi
Journalist
Ferruccio Amendola
Mother of Giuseppe
Emma Baron
Director
Vittorio Cottafavi
Story
Giuseppe Mangione
Director of Photography
Camera Operator
Armando Nannuzzi
Editor
Loris Bellero
Sound
Raffaele Del Monte
Production Director
Vieri Bigazzi
Screenplay
Siro Angeli