Rosario Dawson has joined the cast of Warner Bros.’ spinoff to the hugely popular ‘The Lego Movie’ having signed on to play Batgirl in ‘Lego Batman’

Will Arnett is reprising the Caped Crusader role he originated in Lego Movie. Michael Cera is voicing the hero’s sidekick, Robin, while Zach Galifianakis is in negotiations to play the Joker.

Dawson will voice Barbara Gordon, the daughter of police commissioner James Gordon who later becomes the crime-fighting heroine Batgirl.

Chris McKay, the animation supervisor on ‘The Lego Movie’, is directing the project, which has a script written by author-screenwriter Seth Grahame-Smith.