| A | B |
| Octavius Ceasar | adopted son of Caesar |
| Marcus Antonius | Caesar's faithful follower |
| M. Aemilius Lepidus | basically does Anthony's tasks |
| Cicero | Senator of Rome, he is calm |
| Publius | Senator of Rome, tells people that assassinations are over after the fall of Caesar |
| Popilius Lena | Senator of Rome, seems to know about the plot to kill caesar |
| Marcus Brutus | Friend of Caesar who betrays him for the good of the Roman people |
| Cassius | A very tempered person who plans a conspiracy to assassinate Caesar |
| Casca | conspirator against Julius Caesar |
| Trebonius | one of the conspirators, only one that does not stab Caesar |
| Ligarius | one of the conspirators respects Brutus and follows his wishes |
| Decius Brutus | one of the conspirators, reinterprets Calpurnia's dream |
| Metellus Cimber | one of the conspirators, he bringds up false request that his brother's banishment shoud be repealed |
| Cinna | one of the conspirators, throws forged letters into Brutus' window |
| Flavius | one of the tribuneswho scolds the people for honoring Caesar |
| Marullus | one of the tribunes, he is unsure whether to assist the othe tribune |
| Artemidorus of Cnidos | writes a letter to Caesar warning him about the assassination plot |
| Cinna the Poet | He is killed by the angry mob because they mistake him for Cinna the conspirator |
| Lucilius | Noble friend to Brutus |
| Titinius | Brutus' servant who goes for a joy ride after the victory |
| Messala | Soldier to Brutus and Cassius, he tells Brutus that his wife is dead |
| Young Cato | Soldier to Brutus and Cassius he is killed during the second battle at Phillipi |
| Volumnius | Soldier to Brutus, will not respect Brutus' request to kill him |
| Clitus | servant of Brutus, willnot respect Brutus' request to kill him |
| Claudius | servant to Brutus, does not see the ghost of Caesar |
| Strato | servant of Brutus, agrees to hold the sword that Brutus runs into |
| Lucius | servant of Brutus, who is treated with kindness and toleeration |
| Dardanius | servant of Brutus, will not respect Brutus' request to kill him |
| Pindarus | servant of Cassius, mistakenly tells Cassius that Titinius is captured |
| Calphurnia | Julius Ceasar's wife |
| Portia | wife to Brutus |
| A Soothsayer | a fortune teller |