Charlton Heston as Marc Antony

Jason Robards as Marcus Brutus

John Gielgud as Julius Caesar

Robert Vaughn as Servilius Casca

Richard Chamberlain as Octavius Caesar / Augustus

Christopher Lee as Artemidorus

Richard Johnson as Cassius

Diana Rigg as Portia

Michael Gough as Metellus Cimber

Peter Eyre as Cinna the Poet

Paul Hardwick as Messala

Jill Bennett as Calpurnia

John Moffatt as Popilius Lena

David Neal as Cinna the Conspirator

Norman Bowler as Titinius

John Tate as Clitus

Damien Thomas as Pindarus

Ewan Hooper as Strato

Thomas Heathcote as Flavius

André Morell as Cicero

David Leland as Plebian

Yvette Rees as Plebian

David Dodimead as Lepidus