Romeo And Juliet: Friar Laurence
Most people would not consider Friar Laurence to be the most important character, what with his many mistakes, sneaky plans, and abused power. But yet, if you look at all his mistakes, and plans combined, he was the one who ultimately ended the feud. Friar Laurence had the most power over both families, being a wise counselor and unbiased in the feud, so he was able to give advice to Romeo and Juliet, who followed blindly. Looking at his role in the play, you see that he was a powerful person, who, by making mistakes, and giving counsel, could stop the hate between two families. He was the one who ended the feud between the Montague and Capulet families, helping them reconcile.