Lady Gaga Joker: Folie à Deux Arthur Fleck Performance Character Analysis Character Portrayal Joker Career Character Development Career Highlights Harley Quinn Controversies Weight Loss Nominations Commodus Harry Lawtey Rooney Mara Joker: Folie á Deux Box Office Appeal Performance Analysis Connor Storrie Richard Harris Filmography Character Roles The Joker Heath Ledger The Dark Knight Gladiator Golden Globe Awards Worst Actor Performance Recognition Joker: Folie a Deux Napoleon Reservation Road Emma Stone Representation Agencies Portrayal of Joker Roles Oscar Winners Role as Arthur Fleck Upcoming Films Film Projects Comedy Roles Character: Arthur Fleck Physical Transformation Costume Design Career Decisions Character Transformation Diet and Weight Loss James McAvoy Split Career Choices