Marlon Brando
Marc Antoine
Tom Powers
Metellus Cimber
Bill Phipps
Servant to Antony
Douglass Watson
Octavius Caesar
Douglass Dumbrille
Lepidus
Paul Guilfoyle
First Citizen of Rome
John Doucette
A Carpenter, Second Citizen
Lawrence Dobkin
Third Citizen of Rome
Jo Gilbert
Fourth Citizen of Rome
Chester Stratton
Servant to Caesar
Michael Tolan
Officer to Octavius
Thomas Browne Henry
Volumnius
David Bond
Citizen of Rome
Ann Tyrrell
Citizen of Rome
John O'Malley
Citizen of Rome
Oliver Blake
Citizen of Rome
Alvin Hurwitz
Citizen of Rome
Donald Elson
Citizen of Rome
Rudy Germane
Citizen of Rome (uncredited)