Mr Leibowitz

“If the devil does not exist, and man has therefore created him, he has created him in his own image and likeness”

~Fyodor Dostoyevsky

First encountered by the group in the haunted house in Las Vegas, Mr Leibowitz is a powerful Scion of (allegedly) Atlantean descent.
He is said to have been one of the original group of six (consisting of himself, Edward Gryn, Dave Kabotinsky, Alice Rose, Adam and Eve) that left college pursued by "darkness". He was also the first to be taken by the darkness, returning with greater power and dark designs. He was thought to have been killed by Edward and Dave shortly after the ambush organised by agent Hito; however he later returned, saying that the physical body that had been destroyed was little more than a construct of his.
Most recently he killed two of the Marassa - agents of fate - and stole the flesh from one of their bodies. It remains to be seen as to what the consequences of this action will be.