Phoenix and Gaga star in the trailer for the Joker sequel Film News Phoenix and Gaga star in the trailer for the Joker sequel admins April 10, 2024 Lady Gaga portrays Arthur Fleck’s psychiatrist, Harley Quinn, in the follow-up, while Fleck is incarcerated at Arkham... Read More Read more about Phoenix and Gaga star in the trailer for the Joker sequel