The Joker is a minor character in Batman: The Telltale Series and a supporting character turned main antagonist in it's sequel Batman: The Enemy Within. A mysterious patient at Arkham Asylum known as "John Doe", Joker became an ally to Bruce Wayne while he was incarcerated at the asylum. After he was discharged from the asylum, Joker went on to associate with a group of criminals called The Pact, whom he wished Bruce to get involved with. After the group disbanded, the actions of Bruce/Batman affected the Joker, ultimately becoming one of the greatest threats Batman has ever faced.