The back story of the joker actor Zack Avery is more interesting than the movie. The guy's name is actually Zachary Joseph Horwitz. The guy was a con artist had a Ponzi scheme going in LA and swindled over $650 million from people. He even conned his wife and close friends. True sociopath, just like the joker. This guy was a Hollywood version of Bernie Madoff. Google the guy and there are several podcasts out their that detail the acting this guy did to everyone around him. If only he put the same effort into his acting as he did in real life, he might made something of himself. He is now serving 20+ years in jail, wondering if he is laughing now.
