Emil Parsons was a dead necromancer who attempted, with Hal and Lady Catherine, to trap and kill the Devil in 1918. He is portrayed by Jeremy Swift. Judging by his clothing, he may have died in the 17th century. During the ritual, the Devil dispersed him when Hal neglected to use his own blood in the binding ritual, weakening the ritual so that the Devil was merely trapped in human form while retaining enough of his powers.