As Rob Gordon correctly informs us in 'High Fidelity', "that what really matters is what you like, not what you are like... Books, records, films - these things matter. Call me shallow but it's the fuckin' truth [...]." Of course, it holds true for what you hate as well.
Thus, to depart from the way of the all-important four letters for a while, in this thread we shall list characters (preferably from fiction; but if you stay reasonable, reality should be okay also) that we hate; we shall list ten of them, possibly less, but not more.
One of you will have to begin, because I just had the idea so that no list is in place to be revealed right now.