My favourite horror character has to be Clive Barkers Pinhead. He is funny; deadly; and he never gives up.
In Hellraiser 3: Hell on Earth, we get to see his creative flair for killing people in imaginative ways.
You also learn that the evil inside, was once a regular man. But he was forever changed by the first world war, – as were many of the soldiers.
So, he turned to the L’merchant puzzle box.