Cassius convinces Brutus to join the plot to assassinate Julius Caesar by appealing to Brutus's sense of honor and patriotism and by highlighting Caesar's growing power and ambition. Cassius also plays on Brutus's fear that Caesar's power will diminish the Roman Republic.
Cassius!
Cassius is convinced by brutus to join his plot
Brutus does kill Caesar.
Decius Brutus.
The conspirators want Brutus in their conspiracy because his involvement would lend the plot credibility and legitimacy. Brutus is seen as honorable and respected among Romans, which would help sway public opinion in favor of their cause. Additionally, Brutus's lineage and reputation could bring in more supporters to their cause.
Cassius tells Brutus that Caesar refused the crown of a king three times, but each time he refused it more reluctantly, which convinces Brutus that Caesar has been tempted by the thought of absolute power.
Brutus agrees to go along with the plot because he thinks that it will honestly be better for the Roman Republic.
No cassius, brutus' brother-in-law talks brutus into joining the conspiracy
their respect or honor
Cicero is the senator whom Brutus refuses to ask to join the conspiracy.
Initially Circe herself does. Later, Odysseus convinces the rest of the men to join him with Circe as well.
To protect Brutus his noble and honorable leader.