The evil King Zagro has designs on the beautiful Princess Sira. He wants to marry her so he can take over her kingdom and add it to his own. When Sira is kidnapped, Ursus leaves his farm to rescue her and to eventually lead a revolt against King Zagro.
| Actor | Role |
|---|---|
 Samson BurkeUrsus | Ursus |
 Wandisa GuidaSira | Sira |
 Livio LorenzonKing Zagro | King Zagro |
 Gianni RizzoLicurgo | Licurgo |
 Roberto ChevalierDario | Dario |
 Nadia SandersSabra | Sabra |
 Nerio BernardiKing Alteo | King Alteo |
 Franco FantasiaCaptain of the Guard | Captain of the Guard |
 Gina RovereLidia | Lidia |
 Ignazio BalsamoAndros | Andros |
 Attilio DottesioAfro, Zagro's Servant | Afro, Zagro's Servant |
| AAndrea CostaNot listed | Not listed |
 Fedele GentileNot listed | Not listed |
| CCarlo LatimerNot listed | Not listed |
 Ugo SassoNot listed | Not listed |
 Amedeo TrilliNot listed | Not listed |