 Robert MitchumLt. Duke Halliday | Lt. Duke Halliday |
 Jane GreerJoan 'Chiquita' Graham | Joan 'Chiquita' Graham |
 William BendixCapt. Vincent Blake | Capt. Vincent Blake |
 Patric KnowlesJim Fiske | Jim Fiske |
 Ramon NovarroInspector General Ortega | Inspector General Ortega |
 Don AlvaradoLt. Ruiz | Lt. Ruiz |
 John QualenJulius Seton | Julius Seton |
 Pascual García PeñaManuel | Manuel |
 Frank HagneyMadden (uncredited) | Madden (uncredited) |
 Arturo Soto RangelPedro (uncredited) | Pedro (uncredited) |
 Rodolfo Hoyos Jr.Customs Inspector (uncredited) | Customs Inspector (uncredited) |
 Carl SkloverDockhand (uncredited) | Dockhand (uncredited) |
 Virginia FarmerAmerican Tourist (uncredited) | American Tourist (uncredited) |
 Nacho GalindoPastry Vendor (uncredited) | Pastry Vendor (uncredited) |
 Pat O'MalleyPurser (uncredited) | Purser (uncredited) |
 Don DillawayPurser (uncredited) | Purser (uncredited) |
| AAlphonso DuBoisPolice Sergeant (uncredited) | Police Sergeant (uncredited) |
 Gregorio AcostaChaney (uncredited) | Chaney (uncredited) |
 Salvador BaguezMorales (uncredited) | Morales (uncredited) |
 Ted JacquesCole (uncredited) | Cole (uncredited) |
 Bernard SellDeparting Passenger (uncredited) | Departing Passenger (uncredited) |
| AAlfonso Sánchez TelloBasguez (uncredited) | Basguez (uncredited) |
 Jorge TreviñoBarber (uncredited) | Barber (uncredited) |
| TTony RouxParrot Vendor (uncredited) | Parrot Vendor (uncredited) |
| FFelipe TurichGuitar Vendor (uncredited) | Guitar Vendor (uncredited) |
 Beatriz RamosCarmencita, shopkeeper (uncredited) | Carmencita, shopkeeper (uncredited) |
| PPrimo LópezBellhop (uncredited) | Bellhop (uncredited) |
| JJosé LozaBellhop (uncredited) | Bellhop (uncredited) |
| EElias GamboaVendor (uncredited) | Vendor (uncredited) |
| FFrank LeyvaVendor (uncredited) | Vendor (uncredited) |
