James Horton is a major villain in Highlander : The Series and the closest thing Duncan Macleod had to a true archenemy. He is was a Watcher and the leader of The Hunters, a cult-like faction of renegade Watchers that sought to wipe out all Immortals, whom they considered abominations that had to be destroyed. From 1981 to 1985 he had been the Watcher for the vicious immortal known as The Kurgan, one of the most brutal Immortals ever recorded, which may have influenced Horton's belief that Immortals had to be eliminated. The sheer amount of pain his activities caused for Macleod and his friends cannot be discounted.