Rastus Derelict was a member of the Clergy of Nergal who helped Tcha Khan set the scene for the invasion of Aison prior to the Great War. He was also the bastard son of King Byron Kagawest of Aison, but he never bothered to claim the throne because he liked to live free as a cleric. Later on he and Hamish Hawkswing were betrayed by the Clergy of Mardük, and they sided with the Grand Alliance to bring Distreyd Thanadar XII down. Rastus's current whereabouts are unknown.