Joker: Folie à Deux is an upcoming American musical psychological thriller film slated to be a sequel to the 2019 film Joker. Joaquin Phoenix reprises his role as the DC Comics character the Joker, and Lady Gaga plays Harley Quinn. Zazie Beetz also reprises her role from the first film, while Steve Coogan, Brendan Gleeson, and Catherine Keener join the cast in undisclosed roles. The film is directed by Todd Phillips, who also co-wrote the screenplay with Scott Silver. It is produced by Warner Bros. Pictures and DC Studios in association with Village Roadshow Pictures, Bron Creative and Joint Effort.