Sophia Loren
Lucilla
Stephen Boyd
Livius
Alec Guinness
Marcus Aurelius
James Mason
Timonides
Christopher Plummer
Commodus
Anthony Quayle
Verulus
John Ireland
Ballomar
Omar Sharif
Sohamus
Mel Ferrer
Cleander
Eric Porter
Julianus
Finlay Currie
Senator
Andrew Keir
Polybius
Douglas Wilmer
Niger
Norman Wooland
Virgilianus
Michael Gwynn
Cornelius
Virgílio Teixeira
Marcellus
Peter Damon
Claudius
Rafael Luis Calvo
Lentulus
Lena von Martens
Helva
Roland Carey
Barbarian (uncredited)
Gabriella Licudi
Tauna (uncredited)
Robert Rietti
Opening Narrator (voice / uncredited)
Guy Rolfe
Marius (uncredited)
Friedrich von Ledebur
Barbarian (uncredited)
George Murcell
Victorinus
Margaret Fuller
Part of Court (uncredited)
Mario Ghignone
Gladiators Trainer (uncredited)
Jeffrey O'Kelly
Brother of Livius (uncredited)
José Terrón
Soldier on Horse (uncredited)
Patricia Wright
Roman Citizen, Slave Woman (uncredited)
