Claude Rains as Julius Caesar
Vivien Leigh as Cleopatra
Stewart Granger as Apollodorus
Flora Robson as Ftatateeta
Francis L. Sullivan as Pothinus
B as il Sydney
Cecil Parker as Britannus
Raymond Lovell as Lucius Septimus
Anthony Eustrel as Achill
Ernest Thesiger as Theodotus
Anthony Harvey as Ptolemy
Robert Adams as Nubian Slave
Olga Edwardes as Cleopatra's Lady Attendant
Harda Swanhilde as Cleopatra's Lady Attendant
Michael Rennie as Quayside Centurion