Zazie Beetz is moving from absurd superheroics to a supervillain character drama.

The actress, who co-starred in Deadpool 2, is in talks to join Joaquin Phoenix in Joker, the stand-alone origin project from Warner Bros. and The Hangover helmer Todd Phillips.

Phoenix is portraying the DC Comics villain in a film that is more moderately budgeted and darker than the studio’s other DC-based movies, known as the DC Cinematic Universe. The project is also described as more of a dark character study than a crime thriller, with Taxi Driver and The King of Comedy as the tonal watchwords.