Tybalt is a main character and main antagonist in romeo and juliet. He is lady capulet's nephew, Juliets cousin and Romeos rival .Tybalt's role is to be a short tempered cousin of the capulets. Tybalt tends to look around proudly looking for fights. Tybalt killed Romeos best friend mercutio in a street brawl.mercutio often call tybalt the ''king of cats'' witch would be mercutio's nick name for him .Tybalt is a very stubborn character ,and a very skilled fighter.