Ymmu, the right-hand skeleton to the Lord of the Undead. He meddles in mortal affairs on his master's behalf and enjoys his work. The gauntlets he wears cut not just flesh, steel, magical armour etc (actually there's nothing that'll stop them) but they also shear apart souls as he commonly has to undertake the task of tracking down escapees from the Spirit World. Not all of them want to come back and so must be dealt with by other means. He is also an unsurpassed necromancer.

He's not actually evil. In fact, he's quite an eccentric with a decent (albeit very droll and unsurprisingly morbid) sense of humour. Sadly people tend to be too terrified of him and his reputation to find out or understand when he's actually joking. But that's ok 'cos he has his little pal the yellow Butterfly of Happiness to talk to. Aww.