- Charlton Heston
- Mark Antony
- Jason Robards
- Brutus
- John Gielgud
- Julius Caesar
- Richard Johnson
- Cassius
- Robert Vaughn
- Casca
- Richard Chamberlain
- Octavius Caesar
- Diana Rigg
- Portia
- Christopher Lee
- Artemidorus
- Jill Bennett
- Calpurnia
- Derek Godfrey
- Decius Brutus
- David Dodimead
- Lepidus
- Michael Gough
- Metellus Cimber
- David Neal
- Cinna the Conspirator
- Preston Lockwood
- Trebonius
- John Moffatt
- Popilius Lena
- Steven Pacey
- Lucius
- Edwin Finn
- Publius
- Peter Eyre
- Cinna the Poet
- Norman Bowler
- Titinius
- Paul Hardwick
- Messala
- John Tate
- Clitus
- Damien Thomas
- Pindarus
- Bob Keegan
- Lucilius
- Ewan Hooper
- Strato
- Andrew Crawford
- Volumnius
- Thomas Heathcote
- Flavius
- André Morell
- Cicero
- Alan Browning
- Marullus
- Laurence Harrington
- Carpenter
- Ron Pember
- Cobbler
- Derek Hardwick
- Plebian
- Michael Keating
- Plebian
- David Leland
- Plebian
- Yvette Rees
- Plebian
- Michael Wynne
- Plebian
- Trevor Adams
- Servant to Caesar
- Ronald Magill
- Servant to Caesar
- Linbert Spencer
- Servant to Caesar
- Robin Chadwick
- Servant to Octavius
- Barbara Lindley
- Slave
- Roy Stewart
- Slave
- Alba
- Soothsayer
- Roy Beck
- Roman
- Christopher Cazenove
- Servant to Antony
- Liz Gebhardt
- Calpurnia's Maid
- Stephanie Harrison
- Handmaiden
- Ken Hutchison
- Plebian
- Rick Lester
- Centurian guard
- Janet Pearce
- Handmaiden
- Dido Plumb
- Plebian
- Ivor Ramsey
- Boy
- Tina Simmons
- Handmaiden
- Guy Standeven
- Senate Spectator
