A creepy little girl... or boy, sure, but when you're in trouble she's apparently a pretty good friend to have.
... David, on the other hand, is not such a good friend to have. Still, it's not so hard to see why Michael would accept his invitation to "join the club."
If I have to tell you why, then you haven't seen The Hunger. Dude, go see The Hunger.
One of the greatest (and scariest) movie villains ever. Willem Dafoe brilliantly played up Max Schreck's terrifying screen persona in Shadow of the Vampire, but if you haven't already, you've got to see the performance that inspired it.
Dracula, the name synonymous with the word "vampire." He has been portrayed by many actors over the course of several decades of film with seemingly no limit to the genres he can be fit into. Gary Oldman remains my personal favourite Dracula, but there are plenty of good one to choose from.