Claudette Colbert
Cleopatra
Acting
Warren William
Julius Caesar
Acting
Henry Wilcoxon
Marc Antony
Acting
Joseph Schildkraut
King Herod
Acting
Ian Keith
Octavian
Acting
Gertrude Michael
Calpurnia
Acting
C. Aubrey Smith
Enobarbus
Acting
Irving Pichel
Apollodorus
Acting
Arthur Hohl
Brutus
Acting
Edwin Maxwell
Casca
Acting
Ian Maclaren
Cassius
Acting
Eleanor Phelps
Charmion
Acting
Leonard Mudie
Pothinos
Acting
Grace Durkin
Iras
Acting
Ferdinand Gottschalk
Glabrio (scenes deleted)
Acting
Claudia Dell
Octavia
Acting
Harry Beresford
Soothsayer
Acting
Jayne Regan
Lady Vesta
Acting
William Farnum
Lepidus
Acting
Lionel Belmore
Fidius
Acting
Florence Roberts
Lady Flora
Acting
Richard Alexander
General Philodemas
Acting
Celia Ryland
Lady Leda
Acting
William V. Mong
Court Physician
Acting
Robert Warwick
General Achillas
Acting
George Walsh
Courier
Acting
Kenneth Gibson
Scribe
Acting
Wedgwood Nowell
Scribe
Acting
Bruce Warren
Scribe
Acting
Robert Seiter
Aelius (as Robert Manning)
Acting
Edgar Dearing
Convict
Acting
John Carradine
Roman Citizen/Party Guest/Soldier (uncredited) (voice)
Acting
Wilfred Lucas
Roman Greeting Antony (uncredited)
Acting
David Niven
Slave (uncredited)
Acting
Olga Celeste
Slave Girl (uncredited)
Crew