4. Lord Voldemort
The Dark Lord, Tom Riddle, is undoubtedly the most powerful Dark Wizard of the modern Wizarding world. But darkness can only get you so far. Although he was creepy as a kid, he managed to get creepier along the way: apparently murdering countless witches, wizards and muggles along the way doesn't agree with your physical or emotional state as he got drastically less attractive and a lot more crazy. Maybe he just needed a hug. Voldemort only makes number four on the list because of the amount of help he got from followers along the way, his ridiculous seven lives and the fact that he was beaten by a girl and her baby.