Actor Alec Baldwin will play Thomas Wayne, the father of Batman aka Bruce Wayne, in Joker.
Warner Bros has hired Baldwin to appear opposite actor Joaquin Phoenix in the film, reports variety.com.
Todd Phillips is on board to co-write and direct the film.
Actor Jared Leto will not appear in this Joker film. Leto played the Joker in 2016's Suicide Squad and is expected to be back for the Suicide Squad sequel, along with another standalone Joker movie that will be separate from Phoenix's Joker project.