Andrew (A Hundred Shades of Dark)

Now a demilich skull and darklord of the Castle of Horrors, Andrew was once a normal human Dungeon Master on modern earth. His madness led him to believe the Dark Powers would reward him for murdering his players as their player characters died. Now he languishes in the tallest tower of his domain waiting for adventurers to make it through and test their mettle. Andrew is totally aware of the odd circumstances he now "lives" in.