Claudette Colbert
Cleopatra
Warren William
Julius Caesar
Henry Wilcoxon
Marc Antony
Joseph Schildkraut
King Herod
Ian Keith
Octavian
Gertrude Michael
Calpurnia
C. Aubrey Smith
Enobarbus
Irving Pichel
Apollodorus
Arthur Hohl
Brutus
Edwin Maxwell
Casca
Ian Maclaren
Cassius
Eleanor Phelps
Charmion
Leonard Mudie
Pothinos
Grace Durkin
Iras
Ferdinand Gottschalk
Glabrio (scenes deleted)
Claudia Dell
Octavia
Harry Beresford
Soothsayer
Jayne Regan
Lady Vesta
William Farnum
Lepidus
Lionel Belmore
Fidius
Florence Roberts
Lady Flora
Richard Alexander
General Philodemas
Celia Ryland
Lady Leda
William V. Mong
Court Physician
Robert Warwick
General Achillas
George Walsh
Courier
Kenneth Gibson
Scribe
Wedgwood Nowell
Scribe
Bruce Warren
Scribe
Robert Seiter
Aelius (as Robert Manning)
Edgar Dearing
Convict
John Carradine
Roman Citizen/Party Guest/Soldier (uncredited) (voice)
Wilfred Lucas
Roman Greeting Antony (uncredited)
David Niven
Slave (uncredited)
Olga Celeste
Slave Girl (uncredited)
Cecil B. DeMille
Director
Rudolph G. Kopp
Original Music Composer
Cecil B. DeMille
Producer
Anne Bauchens
Editor
Roland Anderson
Art Direction
Hans Dreier
Art Direction
Billy Gordon
Casting
Cullen Tate
Assistant Director
Victor Milner
Director of Photography
Vicky Williams
Costume Design
David MacDonald
Assistant Director
Waldemar Young
Screenplay
Vincent Lawrence
Screenplay
Bartlett Cormack
Adaptation
Robert Rhea
Assistant Camera
Barney Wolff
Special Effects
Ray Jones
Still Photographer
Gladys Percey
Researcher
Treg Brown
Sound Effects Editor
Max Reese
Orchestrator
Milan Roder
Orchestrator
Franklin Hansen
Sound Director
Ralph Jester
Sculptor
Guy Roe
Assistant Camera
Cooper Smith
Camera Operator
Nat W. Finston
Music Director
Gladys Jeans
Stand In
Jeanie Macpherson
Researcher
William C. Mellor
Camera Operator
Michael D. Moore
Props
Travis Banton
Costume Design
Cliff Shirpser
Assistant Camera
Adolph Zukor
Presenter
Harry Lindgren
Sound Engineer