While we're on the subject of things with two faces...

He's based on an emoticon typo that came out as D:D. So, he has a face that spins with a different expression depending on which way it's flipped.

The name Thafator is actually a corruption of "The Fucking Tornado" because... it's a long story that involves Morrowind, backflips, and somehow came around to misspelled smiley faces.