Butler is Artemis' bodyguard. Butler exists in both the past and the future. Butler in the future is mesmerized by Opal and forced to cage Holly and the demon to stop them from interfering in Opal's plans, but when Opal tries to get him to kill young Artemis, Butler has a heart attack in his attempts to resist her commands. The Butler of the past works closely with young Artemis, helping him steal the lemur and take it to the Extinctionists. However, Butler has moral issues with the action, therefore when Holly is given to the Extinctionists as well, Butler insists on going back to help her. Although Artemis does not seem aware of it, Butler is a kind man and his moral code seems to eventually rub off on young Artemis.
