Lucilla
Sophia Loren
Livius
Stephen Boyd
Senator
Finlay Currie
Polybius
Andrew Keir
Niger
Douglas Wilmer
Victorinus
George Murcell
Virgilianus
Norman Wooland
Cornelius
Michael Gwynn
Marcellus
Virgílio Teixeira
Claudius
Peter Damon
Lentulus
Rafael Luis Calvo
Helva
Lena von Martens
Marcus Aurelius
Alec Guinness
Barbarian (uncredited)
Roland Carey
Part of Court (uncredited)
Margaret Fuller
Gladiators Trainer (uncredited)
Mario Ghignone
Tauna (uncredited)
Gabriella Licudi
Brother of Livius (uncredited)
Jeffrey O'Kelly
Opening Narrator (voice / uncredited)
Robert Rietti
Marius (uncredited)
Guy Rolfe
Soldier on Horse (uncredited)
José Terrón
Friedrich von Ledebur
Roman Citizen, Slave Woman (uncredited)
Patricia Wright
Timonides
James Mason
Commodus
Christopher Plummer
Verulus
Anthony Quayle
Ballomar
John Ireland
Sohamus
Omar Sharif
Cleander
Mel Ferrer
Julianus
Eric Porter
Director
Anthony Mann
Assistant Director
José López Rodero
Dialogue Coach
George Tyne
Conductor
Dimitri Tiomkin
Original Music Composer
Screenplay
Ben Barzman
Philip Yordan
Stunt Coordinator
Yakima Canutt
Second Unit Director
Director of Photography
Robert Krasker
Second Unit Cinematographer
Cecilio Paniagua
Associate Producer
Michał Waszyński
Andrew Marton
Production Manager
C.O. Erickson
Orchestrator
Herbert Taylor
Cecil Bolton
Presenter
Samuel Bronston
Second Second Assistant Director
Julio Sempere
George Parrish
David Tamkin
Second Assistant Director
Mauro Sacripanti
Frank Comstock
Robert Docker
Production Design
Veniero Colasanti
Casting
Maude Spector
John Moore
Set Decoration
Author
Edward Gibbon
Costume Design
Producer
Jaime Prades
Basilio Franchina
Editor
Robert Lawrence
Sound Mixer
David Hildyard
Camera Operator
John Harris
Sound Effects Editor
Milton C. Burrow
Special Effects
Alex Weldon
Electrician
Bruno Pasqualini
José María Ochoa
Sound Re-Recording Mixer
Gordon K. McCallum
Title Illustration
Maciek Piotrowski
Assistant Editor
Magdalena Paradell
Music Editor
George Korngold
Property Master
Stanley Detlie
Wardrobe Master
Gloria Mussetta
Makeup Artist
Mario Van Riel
Technical Advisor
Will Durant
Hairdresser
Grazia De Rossi
Continuity
Elaine Schreyeck
Technical Supervisor
Carl Gibson