* Charlton Heston as Mark Antony
* Jason Robards as Brutus
* Richard Chamberlain as Octavius
* John Gielgud as Cassius
* James Mason as Lepidus
* Richard Johnson as Casca
* Trevor Howard as Metellus Cimber
* Michael Hordern as Cicero
* Christopher Guard as Cinna
* Andrew Faulds as Decius Brutus
* David Rintoul as Trebonius
* Richard Wordsworth as Caius Ligarius
* Patrick Stewart as Flavius
* John Castle as Calpurnia
Actresses
* Diana Rigg as Portia