Elizabeth Taylor

Cleopatra

Richard Burton

Marcus Antonius

Rex Harrison

Julius Caesar

Pamela Brown

High Priestess

George Cole

Flavius

Hume Cronyn

Sosigenes

Cesare Danova

Apollodorus

Kenneth Haigh

Brutus

Andrew Keir

Agrippa

Martin Landau

Rufio

Roddy McDowall

Octavian - Caesar Augustus

Robert Stephens

Germanicus

Francesca Annis

Eiras

Grégoire Aslan

Pothinus

Martin Benson

Ramos

John Doucette

Achillas

Michael Hordern

Cicero

John Hoyt

Cassius

Carroll O'Connor

Casca

Andrew Faulds

Canidius

Michael Gwynn

Cimber

Peter Grant

Palace Guard (uncredited)

Marne Maitland

Euphranor

Richard O'Sullivan

Pharaoh Ptolemy XIII

Gwen Watford

Calpurnia

Douglas Wilmer

Decimus

Marie Devereux

Bacchanal Reveler

Herbert Berghof

Theodotos

Jacqueline Chan

Lotos

Isabel Cooley

Charmian

Mike Steen

Minor Role

Finlay Currie

Titus (uncredited)

Meri Welles

Cleopatra's Handmaiden

Peter Forster

Officer

John Alderson

Roman Officer (uncredited)

John Alderton

1st Officer (uncredited)

Jeremy Kemp

Agitator (uncredited)

Desmond Llewelyn

Senator (uncredited)

Jean Marsh

Octavia (uncredited)

Laurence Naismith

Arachesilaus (uncredited)

Larry Taylor

Roman Officer (uncredited)

Ben Wright

Narrator (voice) (uncredited)