3. Draco Malfoy
With his white-blond Hitler Youth hair and hangups about pure-blood wizards, Draco is an ideal antagonist for Harry the hero. Tom Felton plays him with an indelible sneer, and something even better — the suggestion that something decent lies beneath his bully exterior. Felton just won MTV's Best Villain award for Harry Potter and the Half Blood Prince. We all want more Draco. Yet Part I reduces him to a cameo. Boo!