Leonard Mann
Murri
James Mason
Senatore Leandri
Enrico Maria Salerno
Ministro
Janet Ågren
Gloria
Antonella Murgia
Laura
Fausto Tozzi
brigadiere Giulio Costello
Stephen Boyd
Lanza
Franco Interlenghi
brigadiere Colombo
Ennio Balbo
industriale Lombardi
Peppino Di Capri
sé stesso
Raffaele Curi
Martino
Giovanni Elsner
agente Martino (as Gianni Elsner)
Franco Ressel
Lombardi's Lawyer
Goffredo Unger
Maresciallo Celesti
Angelo Casadei
Passerby (uncredited)
Tom Felleghy
Surgeon (uncredited)