Mr. Hyde From The Strange Case of Dr. Jekyll and Mr. Hyde
How to dress, according to the book: Robert Louis Stevenson wrote, "'He is not easy to describe. There is something wrong with his appearance; something displeasing, something downright detestable. I never saw a man I so disliked, and yet I scarce know why. He must be deformed somewhere; he gives a strong feeling of deformity, although I couldn't specify the point. He's an extraordinary-looking man, and yet I really can name nothing out of the way. No, sir; I can make no hand of it; I can't describe him. And it's not want of memory; for I declare I can see him this moment.'"
How to act: Mr. Hyde is the manifested form of the evil side of man. All he does is commit crimes and murder and misdeeds. Make sure you always have that evil gleam in your eye.