Ivory Aquino, who is trans, will make DCEU history in the role.
Worlds of DC's Batgirl is breaking boundaries, with the movie becoming the first live-action feature-length title in the DCEU to feature an openly transgender character.
Batgirl has taken a step towards greater on-screen representation for the LGBTQ+ community by casting Ivory Aquino as Alysia Yeoh.
According to Variety, Ivory – who portrayed trans activist Cecilia Chung in When We Rise – will take on the role of Alysia Yeoh, Barbara Gordon's best friend and roommate.
Alysia first appeared in a 2011 issue of the Batgirl comic books written by Gail Simone
Aquino will star alongside Leslie Grace's titular hero in the upcoming HBO Max movie, which recently offered a sneak peek at Batgirl's suit for the first time.
Featuring a sleek cowl and yellow cape, Leslie Grace's batsuit is inspired by the Batgirl of Burnside comic by Cameron Stewart, Brenden Fletcher, Babs Tarr and Maris Wicks.
Introducing her costume to fans on Instagram, Leslie Grace captioned the first-look image with a quote from the comics.
"I use their expectations against them," she wrote. "That will be their weakness. Not mine. Let them all underestimate me... And when their guard is down, and their pride is rising, let me kick their butts..."
Plot details for Batgirl remain firmly under wraps for the time being, but we do know that Michael Keaton will reprise his role as Batman, and as a potential mentor for Barbara Gordon.
JK Simmons is also set to return as Commissioner James Gordon, Barbara's father, while Brendan Fraser is tipped to appear as Garfield Lynns/Firefly.