The Joker—especially Heath Ledger's portrayal
—first seems like your crazy Uncle Dan (bad suit, greasy hair and all). But it doesn't take much screen time to realize he's a force nearly no one can contain. Though a monster, he understands humanity too
well and manipulates it to bring out the worst in people for no other reason than his own enjoyment. After you take in Heath's wonderfully cringe-inducing performance, you'll never look at No. 2 pencils the same again.