Marcus Numidius, a Roman tribune sent to Armenia to put down a gladiators' revolt, captures the rebels' popular leader, Asclepius. Princess Amira, with ambitions of being Queen and jealous of Asclepius' popularity, plans his death in the arena by substituting a lion for his human opponent
| Actor | Role |
|---|---|
 Ettore ManniMarco Numidio | Marco Numidio |
 Gianna Maria CanaleAmira | Amira |
 Mara CruzZahar | Zahar |
 Georges MarchalAsclepio | Asclepio |
 Rafael Luis CalvoLucano | Lucano |
| FFidel MartínOsro | Osro |
| VVega VinciArmodia | Armodia |
 Jesús TordesillasGouverneur Crisipius | Gouverneur Crisipius |
 Rafael DuránBourkalla | Bourkalla |
 Nando TamberlaniSenator Lucilius | Senator Lucilius |
 Valeria MoriconiDienerin | Dienerin |
 Lina RosalesRamnis | Ramnis |
 Renato MontalbanoFabrizio | Fabrizio |
 Eulalia del PinoServa | Serva |
 Salvatore FurnariAstarte | Astarte |
 Emilio Alonso(uncredited) | (uncredited) |
 Vicente Bañó(uncredited) | (uncredited) |
 Rafael Calvo Revilla(uncredited) | (uncredited) |
 Kerima(uncredited) | (uncredited) |
| JJuan Olaguibel(uncredited) | (uncredited) |
 Santiago RiveroSacerdote (uncredited) | Sacerdote (uncredited) |
 Conrado San Martín(uncredited) | (uncredited) |
| FFrancisco Vázquez(uncredited) | (uncredited) |