An adventurer and his buddies race a former Nazi and others to diamonds in the South American jungle.
| Actor | Role |
|---|---|
 Stuart WhitmanGringo | Gringo |
 John IrelandPriest | Priest |
 Donald PleasenceKlaus von Blantz | Klaus von Blantz |
 Bradford DillmanClark | Clark |
 Sonia InfanteMorimba | Morimba |
 Emilio FernándezTacho / Paco | Tacho / Paco |
 Pedro Armendáriz Jr.Pablo / Zapata | Pablo / Zapata |
 Jorge LukeJairo / Jaime | Jairo / Jaime |
 Ann SidneyBarbara | Barbara |
| CClark JarrettDick | Dick |
 Hugo StiglitzRiverboat Captain | Riverboat Captain |