Marcus Brutus is a patrician Roman senator known for his rigid honor and sense of virtue. He shares a close friendship with Caesar but deeply values the freedom of the Roman Republic. This creates a severe internal conflict when others approach him about Caesar's growing power. He is trusting by nature, which leaves him vulnerable to political manipulation.

Caius Cassius is a Roman Senator who fiercely resents Caesar's popularity and power. He is highly observant and shrewd, using flattery and forged letters to persuade others to join his political cause. Though power-hungry and occasionally hypocritical about taking bribes, he maintains a fierce loyalty to his closest friends.

Caesar is a celebrated Roman Consul and populist dictator returning triumphant from military campaigns. He is a larger-than-life figure who commands immense loyalty from the common people but inspires fear among patrician senators. His defining arrogance makes him deaf to counsel and dismissive of numerous omens warning him of impending danger.

Mark Antony is a Roman General and Caesar's chief supporter. He is a skillful orator who knows exactly how to manipulate public emotion. While deeply loyal to Caesar, he also acts as a highly opportunistic politician. He carefully calculates his behavior around rivals to secure his own position and advance his authority in Rome.

Octavius is Caesar's legal heir who arrives to claim his place in Roman politics. He represents the future leadership of Rome and immediately begins forming strategic alliances. Despite his youth, he quickly demonstrates a strong will, occasionally clashing with older, more experienced military leaders over strategic decisions.

Calpurnia is Caesar's wife. She experiences terrifying prophetic dreams about her husband and begs him to stay home from the Senate. Her genuine concern for his safety conflicts directly with his desire to project strength and invulnerability to the Roman public.

Portia is Brutus's wife. She is highly observant and deeply troubled by her husband's recent melancholy and secretive behavior. She demands to be treated as an equal partner in his life, going to extremes to prove her mental fortitude and loyalty to him.

A tribune of the plebs who reports the events of the Lupercalia festival to Brutus and Cassius. He is terrified by the violent storms and strange omens plaguing Rome. He speaks plainly in prose rather than verse, reflecting his straightforward approach to the brewing political rebellion.

A Roman senator involved in the plot against Caesar. He understands Caesar's ego perfectly and uses skillful flattery to reinterpret ominous dreams as positive signs, ensuring the dictator leaves his house on a crucial day.

A fortune-teller in the Roman crowd. He delivers a famous, specific warning to the ruler about a particular date on the calendar, though his words are casually dismissed.

A diviner who discovers the exact names of the men plotting against the Roman leader. He waits in the street with a letter detailing the conspiracy, hoping to hand it to Caesar as he passes toward the Capitol.

A young servant and attendant in Brutus's household. He performs household errands, checks the calendar, and plays music to soothe his master during sleepless nights.

A soldier and loyal follower of Cassius. The two men share a deep mutual respect and friendship, relying on each other heavily during the stress of military campaigns.

A military leader who forms the Second Triumvirate alongside Antony and Octavius. His political partners privately question his qualifications to govern and plan to use him merely as a tool to consolidate their own power.

A bondsman and servant who owes a deep personal debt to Cassius. He acts as his master's eyes on the battlefield, reporting back on the movement of allied troops.

A Roman citizen who unfortunately shares a name with one of the political conspirators. He encounters an angry mob in the streets of Rome, demonstrating the dangerous and indiscriminate chaos of public uprisings.

A senator who supports Cassius's political faction. He helps distribute forged letters directly to Brutus's property to sway the noble Roman to their cause.