Jacob Deegan

Jacob Deegan, the eldest of the three Deegan brothers, also happens to be the black sheep of the family. Since the fatal attack of a powerful necromancer in his young years, an event which made a severe mark on all of the Deegan boys, Jacob's juvenile fascination with death evolved into practicing necromancy as a way of... "life". Eventually, he became quite good at it

WARNING: THE FOLLOWING CONTAINS SPOILERS REGARDING THE SERIES:

Jacob was initially introduced into the comic by Gregory mentioning him after Luna had discovered the blight of the undead upon his leg, during the chapter "Makeover!". This invoked quite a bit of irritation in Dominic, as he wanted nothing to do with Jacob and had instructed Gregory never to mention him.

Try as he might, however, Dominic could not extinguish the brotherly love Gregory still felt for Jacob, nor the faith in the feeling being mutual.

The next appearance was in the early pages of the chapter "Visions of Doom", where Dominic received one such vision in an otherwise happy situation. As he aptly described to Gregory the next morning, he "saw Jacob tear the skin off his arm, like he was peeling an orange."