Mercutio is a good friend to Romeo. The role he plays is a major impact in the story. He can be considered Mother Nature because he can be witty, funny and of course, serious all at the same time. He is an audience favorite because of his witty remarks and attitude. His death is so important because of his curse he puts on both families. Also, the play goes from comedic, happy side to complete tragedy because, after Mercutio is killed by Tybalt. Tybalt is killed by Romeo, who is his kinsman, through Juliet. Then, as we know, at the end, both Romeo and Juliet die.