Cast
- Alec Guinness
- Marcus Aurelius
- Sophia Loren
- Lucilla
- Stephen Boyd
- Livius
- James Mason
- Timonides
- Christopher Plummer
- Commodius
- Anthony Quayle
- Verulus
- Omar Sharif
- Sohamus
- John Ireland
- Ballomar
- Mel Ferrer
- Cleander
- Eric Porter
- Julianus
- Douglas Wilmer
- Niger
- Peter Damon
- Claudius
- Andrew Keir
- Polybius
- George Murcell
- Victorinus
- Lena von Martens
- Helva
- Gabriella Licudi
- Tauna
- Rafael Luis Calvo
- Lentulus
- Norman Wooland
- Virgilanus
- Michael Gwynn
- Cornelius
- Guy Rolfe
- Marius
- Finlay Currie
- Senator
- Virgilio Teixeira
Crew
- Anthony Mann
- Director
- Alex C. Weldon
- Special Effects
- Basilio Franchina
- Screenwriter
- Ben Barzman
- Screenwriter
- Dimitri Tiomkin
- Composer (Music Score)
- Gloria Mussetta
- Costume Designer
- John J. Moore
- Production Designer, Set Designer
- John J. Moore
- Production Designer, Set Designer
- Mario Van Riel
- Makeup
- Philip Yordan
- Screenwriter
- Robert Krasker
- Cinematographer
- Robert Lawrence
- Editor
- Samuel Bronston
- Producer
- Veniero Colasanti
- Costume Designer, Production Designer, Set Designer
- Veniero Colasanti
- Costume Designer, Production Designer, Set Designer
- Veniero Colasanti
- Costume Designer, Production Designer, Set Designer
- Will Durant
- Consultant/advisor