Caesar's Sidekick is a term used to refer to two characters from the classic play Julius Caesar by William Shakespeare. The first character is Casca, who is a Roman tribune and one of the conspirators against Julius Caesar. The second character is Decius Brutus, who is a senator and another conspirator against Julius Caesar. Both characters are loyal to Caesar and serve as his confidants throughout the play. The crossword solutions for Caesar's Sidekick are COCA and RAYE, which are abbreviations of the characters' names. COCA stands for Casca and RAYE stands for Decius Brutus.