| A | B |
| Brutus | This character is friends with Caesar, but fears he aspires too much power. Cassius wants him to join the conspirators. |
| Julius Caesar | A great Roman general and senator. |
| Antony | A triumvir after the death of Julius Caesar. A friend of Caesar. He offers the crown to Caesar. Brutus does not want to kill him. |
| Cassius | He is very cunning/manipulative. He is also one of the conspirators. |
| Octavius | A triumvir after the death of Julius Caesar. Caesar’s adopted son and appointed successor |
| Casca | A conspirator opposed to Caesar's rise in power. |
| Calphurnia | Caesar's wife |
| Portia | Brutus' wife |
| Flavius and Marullus | Tribunes who condem the plebeians for their fickleness. |
| Cicero, Publius and Popilius Lena | Roman senators |
| Lepidus | A triumvir after the death of Julius Caesar. |
| Decius | A conspirator who convinces Caesar that Calphurnia misinterpreted her dream. |
| Soothsayer | He warns Caesar to "Beware the Ides of March" |
| Cicero | Brutus does not want this Roman senator to join the conspiators. |
| Artemidorus | Writes a letter warning Caesar of the conspiracy. |
| William Shakespeare | Wrote the play Julius Caesar |