Marlon Brando character Marc Antony
James Mason character Brutus
John Gielgud character Cassius
Louis Calhern character Julius Caesar
Greer Garson character Calpurnia
Deborah Kerr character Portia
Edmond O'Brien character Casca
George Macready character Marullus
Michael Pate character Flavius
Richard Hale character Soothsayer
Alan Napier character Cicero
John Hoyt character Decius Brutus
Ian Wolfe character Caius Ligarius
Douglass Dumbrille character Lepidus
Rhys Williams character Lucilius
Michael Ansara character Pindarus
Tom Powers character Metellus Cimber
William Cottrell character Cinna
Jack Raine character Trebonius
Morgan Farley character Artemidorus
William Phipps character Servant to Antony
Douglass Watson character Octavius Caesar
Dayton Lummis character Messala
Paul Guilfoyle character Citizen of Rome
Edmund Purdom character Strato
Lawrence Dobkin character Citizen of Rome
Jo Gilbert character Citizen of Rome
Chet Stratton character Servant to Caesar
Lumsden Hare character Publius
Preston Hanson character Claudius
Vic Perry character Popilius Lena
Michael Tolan character Officer to Octavius
John Lupton character Varro
Joseph Waring character Clitus
John Doucette character Carpenter, Citizen of Rome
John Hardy character Lucius
William H. O'Brien character Senator (uncredited)
'Snub' Pollard character Citizen of Rome
