Flavius and Marullus Tribunes who wish to protect the plebeians from Caesar's tyranny; they break up a crowd of commoners waiting to witness Caesar's triumph and are "put to silence" during the feast of Lupercal for removing ornaments from Caesar's statues.
Julius Caesar A successful military leader who wants the crown of Rome. Unfortunately, he is not the man he used to be and is imperious, easily flattered, and overly ambitious. He is assassinated midway through the play; later, his spirit appears to Brutus at Sardis and also at Philippi.
Casca Witness to Caesar's attempts to manipulate the people of Rome into offering him the crown, he reports the failure to Brutus and Cassius. He joins the conspiracy the night before the assassination and is the first conspirator to stab Caesar.
Calphurnia The wife of Julius Caesar; she urges him to stay at home on the day of the assassination because of the unnatural events of the previous night as well her prophetic dream in which Caesar's body is a fountain of blood.
Marcus Antonius (Mark Antony) He appears first as a confidant and a devoted follower of Caesar, and he offers Caesar a crown during the feast of Lupercal. He has a reputation for sensuous living, but he is also militarily accomplished, politically shrewd, and skilled at oration. He is able to dupe Brutus into allowing him to speak at Caesar's funeral and by his funeral oration to excite the crowd to rebellion. He is one of the triumvirs, and he and Octavius defeat Brutus and Cassius at Philippi.
A soothsayer He warns Caesar during the celebration of the feast of Lupercal to "beware the ides of March." He again warns Caesar as he enters the Senate House.
