Captain Chadwell, Lieutenant Junger and Sergeant Smith are sent by Washington to help their colleagues of Fort Apache to recover stolen arms. A bounty hunter accompanies them.
| Actor | Role |
|---|---|
 Gianni GarkoKorano | Korano |
 Stephen BoydCpt. Chadwood Willer | Cpt. Chadwood Willer |
 Howard RossLt. Younger | Lt. Younger |
 Simón AndreuAngelo Sanchez | Angelo Sanchez |
 Harry BairdCorp. Washington Smith | Corp. Washington Smith |
 Teresa GimperaMiss Adams | Miss Adams |
 Alfredo MayoGeneral Muller / Lopez | General Muller / Lopez |
 Helga LinéMaria | Maria |
| MMirella DoganManola | Manola |
 Enzo FiermonteDoctor | Doctor |
 Gabriella GiorgelliMexican Woman | Mexican Woman |
 Daniele VargasMajor at Fort Sumpter | Major at Fort Sumpter |
 Guido LollobrigidaCorporal | Corporal |
 Andrea ScottiMexican Peon | Mexican Peon |
 Furio MeniconiBoarding House Owner | Boarding House Owner |