Mercutio is a witty character in Romeo and Juliet, his main role being a humorous character he isn't the deepest character in the play but is good nonetheless. He is only about 15 to 20 although as he was a close friend to Romeo. Even though he is a friend to Romeo no one can escape his wit as Romeo suffers the story of Queen Mab. He isn't bashful, ever. He has met nurse for 10 seconds and then starts his ridicule of her
Mercutio is very aggressive when it comes to dealing with others. He this ends up being his downfall as he starts the fight in which he dies under Romeo's arm. Mercutio is hot headed and quick to the draw the entire story.