Leslie Grace was cast as Batgirl in 2020 and shared photos of herself in the iconic costume on Instagram in early 2022. The Batgirl movie will be a part of the DC Extended Universe, which means actors from the Justice League franchise are expected to appear. J.K. Simmons will reprise his role as Commissioner Gordon (and thus Batgirl's dad). Ivory Aquino will play Alysia Yeoh, Barbara's best friend, making her the first transgender character in a DC Comics film. Brendan Fraser will play the villain Firefly, a pyromaniac. Jacob Scipio, Rebecca Front, Corey Johnson, and Ethan Kai have also all been cast in roles, but those character's identities are unknown.
The movie's Bruce Wayne will be played by Michael Keaton, which is where things start to get complicated. Keaton played Batman in Tim Burton's two Batman films: "Batman" (1989) and "Batman Returns" (1992). He left the franchise, and more movies were made without him. Keaton will reprise his role as Bruce Wayne in the new "The Flash" movie, set to be released in November 2022. In that movie, Keaton will play a Batman from an alternate universe — not the one previously established in the "Justice League" movies. "The Flash" will also contain Ben Affleck's last appearance as his Batman character. It seems that in the course of events of "The Flash" movie, Keaton's Batman gets stuck in the DCEU and sticks around to help out Barbara Gordon in the "Batgirl" film.
There were originally rumors that the "Batgirl" movie would connect to Robert Pattinson's "The Batman," but director Matt Reeves has said that the new movie is not part of the DCEU, but rather its own thing.
