"No, we're still marching. But when we get there, we're going to visit a few old friends, starting with Brutus and Cassius."
Julius Caesar on his future killers[src]

Cassius was a Senator of the Roman Republic and a friend of dictator Julius Caesar who, along with Brutus, conspired against and eventually killed him.


Aberrant timeline: Julius Caesar knew that his friends, Brutus and Cassius, would eventually play a pivotal role in the conspiracy to kill him due to owning a Rise of Rome book from the future which he stole from Nate Heywood. After marching to Rome and winning the civil war with his legion, Caesar killed both Brutus and Cassius.

Ides of March from Rise of Rome

Illustration in Rise of Rome book depicting Cassius, Brutus and other conspirers killing Julius Caesar.

Current timeline: When the timeline was restored by the Time Bureau and the Legends, on March 15, the day known as the Ides of March, 44 BC, the Senate, led by Brutus and Cassius, conspired against Caesar and killed him at the Theatre of Pompey.[1]


  • Political acumen: As a Roman senator, Cassius has enough political influence among the Senate to conspire against and kill Julius Caesar.[1]


  • Dagger: Cassius owned a dagger with which he proceeded to personally stab Caesar.[1]


DC's Legends of Tomorrow

Season 3

Behind the scenes

  • In the real world, Gaius Cassius Longinus was a Roman senator, and a leading instigator of the plot to kill Julius Caesar. He was also a brother-in-law of Brutus, another conspirer and killer mentioned by Caesar in the series.


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