Fascism has forced the leadership of the Italian Communist Party to settle in Paris. In Italy arrests of militants are decimating the organization, so Emilio is sent on a mission in the area of Turin, to put out of harm whistleblowers.
| Actor | Role |
|---|---|
 Gian Maria VolontéEmilio | Emilio |
 Annie GirardotTeresa | Teresa |
 Renato SalvatoriGavino Pintus | Gavino Pintus |
 Gabriele LaviaGiacomo La Rosa | Giacomo La Rosa |
 Bruno CorazzariTommaso Lenzini | Tommaso Lenzini |
 Guido De CarliLibero Ferrante | Libero Ferrante |
 Felice AndreasiAlessandri | Alessandri |
 Antonio CasaleResta | Resta |
| DDaniele DublinoParty Functionary in the café | Party Functionary in the café |
 Pietro BiondiDirigente dell'OVRA | Dirigente dell'OVRA |
 Ernesto Collifunzionario di partito a Parigi | funzionario di partito a Parigi |
 Franco Balduccifunzionario | funzionario |
 Luciano BartoliNot listed | Not listed |
 Mario GarribaNot listed | Not listed |
 Luigi Antonio GuerraNot listed | Not listed |
| GGiuseppe ScarcellaNot listed | Not listed |
 Giuseppe LeoneNot listed | Not listed |