Arrogance would certainly be a character flaw in Julius Caesar.
personality flaw; behavior flaw.
it is a flaw in a character
A character flaw is a flaw in a character's personality and traits that usually negatively affects them and often others around them, if the plot allows it. A good example of this would be a character in a story being overly curious to the point of consequence.
Hamartia is a tragic flaw or error in judgment that leads a character to their downfall in a tragedy. It is a key element in tragic storytelling as it underscores the fatal flaw or mistake that ultimately brings about the protagonist's downfall.
The crow
A character flaw.
these nutes
His angry pride.
arises from the protagonist's own personality and character.
Arrogance is the character flaw most often found in the protagonist of Greek tragedies.
suck a dick