As first reported by Collider, The Wolf of Wall Street’s Margot Robbie has signed on to play Harley Quinn in the upcoming supervillain ensemble movie Suicide Squad.

This will be the first time that the Quinn character has been portrayed on the big screen. She has existed solely in comic books prior to Suicide Squad, a woman who was formerly the Joker’s psychologist until he manipulated her into becoming as crazy as him. Jared Leto is rumored to be in talks to play the Joker, although the movie won’t open until 2016 so there is plenty of time for someone else to step into the role.

Robbie is certainly best known for her Wolf of Wall Street role, but will also appear in several upcoming films before she takes on the Quinn role. The character is a very popular one among comic book fans, and Robbie’s performance could be another huge break in her career.

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[via Collider]