 Yul BrynnerPeter Marciani | Peter Marciani |
 Massimo RanieriAngelo | Angelo |
 Barbara BouchetAnny | Anny |
 Martin BalsamCommissario | Commissario |
 Giacomo FuriaBrigadiere Cannavale | Brigadiere Cannavale |
 Sal BorgeseVincent | Vincent |
 Loris BazzocchiPasquale | Pasquale |
 Rosario BorelliGallo's henchman | Gallo's henchman |
 Luigi BonosPeppiniello | Peppiniello |
| RRenzo MarignanoDoctor | Doctor |
 Giancarlo SbragiaGennaro Gallo | Gennaro Gallo |
| GGennaro BeneduceMan at Police Station | Man at Police Station |
| PPaul CostelloDesk clerk | Desk clerk |
| DDomenico Di CostanzoLeonardi Bodyguard | Leonardi Bodyguard |
 Gilberto GalimbertiGallo Henchman (uncredited) | Gallo Henchman (uncredited) |
| GGennaro BeneduceMan at Police Station (uncredited) | Man at Police Station (uncredited) |
| PPaul CostelloDesk clerk (uncredited) | Desk clerk (uncredited) |
| DDomenico Di CostanzoLeonardi Bodyguard (uncredited) | Leonardi Bodyguard (uncredited) |
 Franco MarinoGallo Henchman (uncredited) | Gallo Henchman (uncredited) |
| EEdoardo MasciaNot listed | Not listed |
 Tommaso PalladinoNot listed | Not listed |
 Umberto SantolamazzaGangster (uncredited) | Gangster (uncredited) |
| EEdoardo MasciaGallo Henchman (uncredited) | Gallo Henchman (uncredited) |
| Tommaso PalladinoGallo Henchman (uncredited) | Gallo Henchman (uncredited) |
 Vezio NatiliGangster (uncredited) | Gangster (uncredited) |
