| Jere Admire | Peruvian Indian | |
| Robert Burr | Hernardo de Soto Second-in-Command | |
| Francisco Pizarro Commander of the Expedition | ||
| Paul Charles | Martin Ruiz as a boy | |
| John Church | Fray Marcos de Nizza Franciscan Friar | |
| Clayton Corbin | Atahuallpa Sovereign Inca of Peru | |
| B.J. DeSimone | Juan Chavez soldier | |
| Don Filber | Hernardo de Soto Second-in-Command | |
| Ralph Lee | Peruvian Indian | |
| Tony Lo Bianco | Fray Marcos de Nizza Franciscan Friar | |
| Roy Lozano | Chieftain | |
| Newt Sullivan | Salinas blacksmith |