Fan Casting ''The Doctor gone rogue'' in Joker: The Arthur Fleck Story

After falling off the bridge thanks to the warrior who took his jaw off, Arthur wakes up in an abandoned medical room, feeling his lower jaw has been stitched back onto his face. He catches notice of a woman and a bunch of criminals tending to the injuries he suffered from the fall off the bridge, and before he can even ask any questions, the woman says, ''It's okay, sweetheart. My name is Harleen Quinzel. I will help you kill the Batman, if you so wish.''