Vilest Best Picture Villain

This is a continuation to the previous Most Inspiring Best Picture Hero poll.

Indeed, as indispensable as the heroic figure is for a Best Picture, it can't do without a proper enemy to defeat, a memorable incarnation of the darkest sides of human nature to triumph over, or at least try ... although some of the following villains happen to be the main protagonists and often the first victims of their own vileness.

So, which of these villains from Best Picture Winners, do you think, is the least redeemable or the closest to your PERSONAL definition of the word 'monster'?

In other words, which one did you want to strangle with your own hands or scared you so much you didn't even dare to think about it?

After voting, you might discuss the list here