Fan Casting The Batman III: The Knight Falls

Fourth movie of the Batmanverse: After the events of the second movie, the Joker is brought to Arkham by Batman, along the way Joker tells the Dark Knight that he has great plans in store for him. 1 week later there is a massive breakout from Arkham Asylum, Joker takes advantage of this situation and enacts his plan, unleashing his toxin all over Gotham. But this is only the beginning for the Dark Knight, as Joker finds out his true identity and starts to target his one and only weakness, the batfamily.