| Person | Type | Job | Role(s) |
|---|---|---|---|
 Cedric Gibbons | Crew | Art | Art Direction |
 Douglas Shearer | Crew | Sound | Recording Supervision |
 Edward C. Carfagno | Crew | Art | Art Direction |
 Edwin B. Willis | Crew | Art | Set Decoration |
Herschel McCoy | Crew | Costume & Make-Up | Costume Design |
 Howard W. Koch | Crew | Directing | Assistant Director |
Hugh Hunt | Crew | Art | Set Decoration |
John D. Dunning | Crew | Editing | Editor |
 John Houseman | Crew | Production | Producer |
 Joseph L. Mankiewicz | Crew | Directing | Director |
 Joseph Ruttenberg | Crew | Camera | Director of Photography |
 Miklós Rózsa | Crew | Sound | Music |
 Sydney Guilaroff | Crew | Costume & Make-Up | Hairstylist |
Warren Newcombe | Crew | Crew | Special Effects |
 William Shakespeare | Crew | Writing | Theatre Play |
 William Tuttle | Crew | Costume & Make-Up | Makeup Supervisor |
P.M. Pasinetti | Crew | Crew | Technical Advisor |
 Alan Napier | Cast | Actor | Cicero |
 Ann Tyrrell | Cast | Actress | Citizen of Rome |
 David Bond | Cast | Actor | Citizen of Rome |
 Dayton Lummis | Cast | Actor | Messala |
 Deborah Kerr | Cast | Actress | Portia |
 Donald Elson | Cast | Actor | Citizen of Rome |
 Douglass Dumbrille | Cast | Actor | Lepidus |
 Douglass Watson | Cast | Actor | Octavius Caesar |
 Edmond O'Brien | Cast | Actor | Casca |
 Edmund Purdom | Cast | Actor | Strato |
 George Macready | Cast | Actor | Marullus |
 Greer Garson | Cast | Actress | Calpurnia |
 Ian Wolfe | Cast | Actor | Ligarius |
 Jack Raine | Cast | Actor | Trebonius |
 James Mason | Cast | Actor | Brutus |
Jo Gilbert | Cast | Fourth Citizen of Rome | |
John Call | Cast | Actor | Citizen of Rome |
 John Doucette | Cast | Actor | A Carpenter, Second Citizen |
 John Gielgud | Cast | Actor | Cassius |
 John Hoyt | Cast | Actor | Decius Brutus |
 John Lupton | Cast | Actor | Varro |
John O'Malley | Cast | Actor | Citizen of Rome |
 John Parrish | Cast | Actor | Titinius |
 Lawrence Dobkin | Cast | Actor | Third Citizen of Rome |
 Louis Calhern | Cast | Actor | Jules César |
 Lumsden Hare | Cast | Actor | Publius |
 Marlon Brando | Cast | Actor | Marc Antoine |
 Michael Ansara | Cast | Actor | Pindarus |
 Michael Pate | Cast | Actor | Flavius |
 Michael Tolan | Cast | Actor | Officer to Octavius |
 Morgan Farley | Cast | Actor | Artemidorus |
 Oliver Blake | Cast | Actor | Citizen of Rome |
 Paul Guilfoyle | Cast | Actor | First Citizen of Rome |
 Rhys Williams | Cast | Actor | Lucilius |
 Richard Hale | Cast | Actor | A Soothsayer |
Stephen Roberts | Cast | Actor | Dardanius |
 Thomas Browne Henry | Cast | Actor | Volumnius |
 Tom Powers | Cast | Actor | Metellus Cimber |
William Cottrell | Cast | Cinna | |
Rudy Germane | Cast | Actor | Citizen of Rome (uncredited) |
Vic Perry | Cast | Popilius Lena | |
Bill Phipps | Cast | Servant to Antony | |
John Hardy | Cast | Lucius | |
Alvin Hurwitz | Cast | Citizen of Rome | |
Chester Stratton | Cast | Servant to Caesar | |
Joe Waring | Cast | Clitus | |
| Person | Type | Job | Role(s) |
