Marcus Superbus - Prefect of Rome
Fredric March
Mercia
Elissa Landi
Licinius
William V. Mong
Ancaria
Joyzelle Joyner
Viturius
Richard Alexander
Strabo
Nat Pendleton
Servillius
Clarence Burton
Tybul
Harold Healy
Philodemus
Robert Seiter
Tyros
Charles Middleton
Colosseum Spectator (uncredited)
Henry Brandon
Christian Martyr / Gladiator Leader / Voice in Coliseum Mob (uncredited)
John Carradine
Empress Poppaea
Claudette Colbert
Christian on Stairway (uncredited)
Dave O'Brien
Crocodiles' Victim (uncredited)
Sally Rand
Chaplain Costello (1944 Re-Release Prologue) (uncredited)
Arthur Shields
Hoboken (1944 Re-Release Prologue) (uncredited)
Tom Tully
Bettor of 300 Silver
Lionel Belmore
Emperor Nero Claudius Caesar
Charles Laughton
Tigellinus
Ian Keith
Titus
Arthur Hohl
Favius Fontelas
Harry Beresford
Stephan
Tommy Conlon
Glabrio
Ferdinand Gottschalk
Dacia
Vivian Tobin
Screenplay
Waldemar Young
Costume Design
Mitchell Leisen
Art Direction
Assistant Director
Director
Cecil B. DeMille
Producer
Director of Photography
Karl Struss
Editor
Anne Bauchens
Sidney Buchman
Theatre Play
Wilson Barrett
Sound Effects Editor
Treg Brown
Edward Salven
Production Manager
Roy Burns
Music
Milan Roder
Rudolph G. Kopp
Paul Marquardt
Jay Chernis
Sound
Harry Lindgren
Makeup Artist
James Collins
Still Photographer
Otto Dyar