Then, let's also do a bit of recap for who can't come back - per the deaths in Joker. She did not 'wrong' Arthur, so he had no revenge to seek. This was confirmed by cinematographer Lawrence Sher. Sophie Dumond (as played by Zazie Beetz) is also possible to return, as Arthur did not kill Sophie. And while her role isn't confirmed, it looks like she could be playing Harley Quinn, as The Hollywood Reporter reported when this rumor first emerged. On August 4, Lady Gaga joined the Joker 2 cast. Joaquin Phoenix is the only announced returning cast member for Joker 2. It also matches with the expectation for the other reported star in the film. Which makes the title's reference to 'shared madness' make sense. Secondly, The Wrap reports that 'a lot' of the film is meant to take place inside Arkham Asylum. Joker 2 plotįirst things first: know that Joker 2 is supposedly a musical, as The Hollywood Reporter broke that news. The title roughly translates to 'shared madness,' which makes sense considering what we just heard. Joker: Folie à Deux is the full title of the film, as Todd Philips posted to his Instagram. Joker 2 isn't the actual title of the film. (Image credit: Lady Gaga / Twitter) Joker 2 title
