 James MasonDr. Frank Matson | Dr. Frank Matson |
 Märta TorénLaura Thorsen | Laura Thorsen |
 Dan DuryeaJohn Wheeler | John Wheeler |
 Basil RuysdaelFather Moreno | Father Moreno |
 William ConradOllie | Ollie |
 Rodolfo AcostaFrancisco Morales | Francisco Morales |
 King DonovanGrieder | Grieder |
| RRobert EspinozaSantiago | Santiago |
| TTito RenaldoHank Torres | Hank Torres |
 Margarito LunaAntonio Morales | Antonio Morales |
 Emma RoldánCatalina | Catalina |
 George J. LewisCaptain Rodriguez | Captain Rodriguez |
 Jack ElamArnie (uncredited) | Arnie (uncredited) |
 Rock HudsonTruck Driver (uncredited) | Truck Driver (uncredited) |
 James BestDriver (uncredited) | Driver (uncredited) |
 Nacho GalindoVillager (uncredited) | Villager (uncredited) |
| JJoe DominguezBias (uncredited) | Bias (uncredited) |
 Paul FierroBandit (uncredited) | Bandit (uncredited) |
| FFreddie LetuliA Weaver (uncredited) | A Weaver (uncredited) |
 Margarita MartínFrasca (uncredited) | Frasca (uncredited) |
| JJulia MontoyaJuanita (uncredited) | Juanita (uncredited) |
 Howard NegleyCop at First Accident Scene (uncredited) | Cop at First Accident Scene (uncredited) |
 Steve PendletonCop at First Accident Scene (uncredited) | Cop at First Accident Scene (uncredited) |
| JJulian RiveroMexican Villager with Horse (uncredited) | Mexican Villager with Horse (uncredited) |
 Kenneth TobeyCop at Second Accident (uncredited) | Cop at Second Accident (uncredited) |
| OO.Z. WhiteheadGas Station Proprietor (uncredited) | Gas Station Proprietor (uncredited) |
