Uther Pendragon is the posthumous main antagonists of the first part of The Steampunk Adventures of Sorcerer's Apprentices. He was a ruler of Camelot whom, after his wife Igraine killed by Vortigern, an evil sorcerer and former ruler of Camelot during their attempt to smuggle the baby Arthur to a group of people whom later revealed as forerunners of Merlineans, he turned into a ruthless tyrant whom persecuted magic and everything that related with it. His extreme methods in persecuting magic even goes so far to genocidal level, as he responsible for wyverns' extinction and nearly wiped out the dragons had they not smuggled their eggs somewhere beyond the tyrant's reach.