Mad Eye Moody!
C'mon, that'd be so cool. Who doesn't need to be asked 20 questions about their true identity each time they enter the room again? (*lol* ok, bit of an exaggaration, he's not that paranoid - but close! )

I think he must be so interesting anyway - imagine all he's seen and done in his life. And the way he thinks must be interesting too.
I don't actually fancy him but, for me, that comes from personality anyway and I just adore Mad Eye, I could very easily love him