Based on the work of Jose Hernandez, the film tells aspects of the life of the gaucho Martin Fierro.
| Actor | Role |
|---|---|
 Horacio GuaranyMartin Fierro | Martin Fierro |
 Onofre LoveroJosé Hernández | José Hernández |
| MMarta CerainNot listed | Not listed |
 Jorge VillalbaNot listed | Not listed |
 Hugo AranaNot listed | Not listed |
| EEnrique AlonsoNot listed | Not listed |
 Susana LanteriNot listed | Not listed |
 Raúl FraireNot listed | Not listed |
| RRubén TobíasNot listed | Not listed |
 Enzo BaiNot listed | Not listed |
 Rodolfo MachadoNot listed | Not listed |
| TTony VilasNot listed | Not listed |
| MMeme VigoNot listed | Not listed |
 Rubén RadaNot listed | Not listed |