Call of Cthulhu- He Who Waits
Evil Cult Leader/Mature Extradimensional Monster
Dashingly handsome and charismatic man.
Not actually a man. Actually a mature spider monster.
Very old. The party has murdered lots of his horrible spider children.
Now has crazy telekinetic powers that he stole from a little girl.
Last seen flying in pursuit of the party. Has been strangely inactive ever since.