Cornel Wilde

Constantine

Belinda Lee

Fausta

Massimo Serato

Maxentius

Christine Kaufmann

Livia

Fausto Tozzi

Hadrian

Tino Carraro

Emperor Maximianus

Carlo Ninchi

Constantius Chlorus

Vittorio Sanipoli

Apuleius

Elisa Cegani

Elena

Nando Gazzolo

Licinius