Arms trafficking with the Indians on the one hand and acquiring documents concerning the ownership of a goldmine on the other are the principal interests of Quin and Gomez, the highly suspicious guests at Papa Martinez' inn. The unexpected arrival of the sheriff Thomas, and the journalist, George, upsets the plans of the two unsavoury allies and they have to try every kind of trick to win out against such adversaries.
| Actor | Role |
|---|---|
| PPeter Lee LawrenceGeorge | George |
 Ida GalliJulia | Julia |
 Raf BaldassarreDingus | Dingus |
 Valeria FabriziAdeline Martinez | Adeline Martinez |
 Salvatore FurnariNed | Ned |
 Daniela GiordanoSarah Baldwin | Sarah Baldwin |
 Philippe HersentMarshal Thomas | Marshal Thomas |
 Antonella MurgiaAna | Ana |
 Antonio PierfedericiMr. Martinez | Mr. Martinez |
 Daniele VargasThompson | Thompson |
| PPaul OxonNavarro | Navarro |
 Umberto RahoQuinn Paradine | Quinn Paradine |
 Raymond BussièresDr. Gordon | Dr. Gordon |
| FFilippo AntonelliNot listed | Not listed |
 Antonio BuonomoNot listed | Not listed |
| KKatia CardinaliSarah's friend | Sarah's friend |
| BBernadette FrankSarah's friend | Sarah's friend |
 Giglio GigliNot listed | Not listed |
| DDomenico MaggioNot listed | Not listed |
 Luigi MannoiaNot listed | Not listed |
 Alessandro PerrellaNot listed | Not listed |
 Aldo SalaNot listed | Not listed |
| MMarcello TamborraNot listed | Not listed |