Dorgon is a villan working for the Bringers with his army of bandits known as other world outlaws. His power is immense and when the heroes engage in combat with him he stabs Dycea before fleeing. he dies near the end of the final book when Avartes shoots an arrow into his heart before Thodwin cuts off his head.
He is the one who realeased the Bringers of all Blood from their abyss. He is known as skull lord for his thousands and thousands of piles of skulls. For each skull another soldier joins him.