- Mark Forest
- Hercules / Attalus
- Marilù Tolo
- Velida, Galienus' Daughter
- Paolo Gozlino
- Zuddo, Pretorian Commander
- Jolanda Modio
- Clea
- Franco Cobianchi
- Emperor Caesar Galienus
- Oreste Lionello
- Drusius
- Nazzareno Zamperla
- Orestes / Horatius
- Fedele Gentile
- Arminius
- Giulio Tomei
- Old Shepherd
- Renato Montalbano
- Gladiator Freeing the Emperor
- Artemio Antonini
- Gladiator
- Fortunato Arena
- Gladiator
- Armando Bottin
- Gladiator
- Augusto Brenna
- Senator / Courtier (uncredited)
- Tony Casale
- Gladiator
- Franz Colangeli
- Arena Spectator
- Mario De Simone
- Citizen of Dacia
- Mauro Mannatrizio
- Zuddo's Henchman
- Giuseppe Mattei
- Gladiator
- Emilio Messina
- Gladiator
- Roberto Messina
- Gladiator
- Nello Pazzafini
- Gladiator
- Osiride Pevarello
- Attalus' Companion Freeing Emperor
- Renzo Pevarello
- Gladiator
- Clemente Ukmar
- Tirso, Attalus's Companion
- Franco Ukmar
- Pretorian Guard
- Sergio Ukmar
- Gladiator
- Ferruccio Viotti
- Quintilius
- Rinaldo Zamperla
- Pretorian Guard
