Sneak peeks at the cast for the upcoming Joker movie just keep coming; next up is Deadpool 2's Zazie Beetz. Director Todd Phillips made the reveal on his Instagram account, where he also recently posted a video of Joaquin Phoenix with Joker makeup. Beetz, who plays the lucky vigilante Domino in Deadpool 2 was in talks earlier this year for a role in the clown prince of crime's origin story.