The elderly O'Hara, owner of a fortune in emeralds, offers half of his estate to whoever manages to get him out of jail. The adventurer Don Casey arrives in the town of Guaynas, ruled by the tyrant Villarde, to fulfill that wish.
| Actor | Role |
|---|---|
 John RichardsonDaniel | Daniel |
 Fernando SanchoEl Lobo | El Lobo |
 Eduardo FajardoVilliarda | Villiarda |
| GGloria MillandMargot | Margot |
 Xan das BolasPadre O’Hara | Padre O’Hara |
 José María CaffarelPietroff | Pietroff |
| MMia GenbergNot listed | Not listed |
 Evi MarandiNot listed | Not listed |
 Luis BarbooNot listed | Not listed |
| PPatrizia GiammeiNot listed | Not listed |
 Luis InduniNot listed | Not listed |
 Víctor IsraelNot listed | Not listed |
 Delfi MauroNot listed | Not listed |