In November 2014 and March 2015, it was announced that Deadshot, Harley Quinn, Killer Croc and the Joker will appear in the film portrayed respectively by Will Smith, Margot Robbie, Adewale Akinnuoye-Agbaje and Jared Leto.
I november 2014 och mars 2015 meddelades det att Deadshot, Harley Quinn, Killer Croc och Joker kommer att visas i filmen och som skildras av Will Smith, Margot Robbie, Adewale Akinnuoye-Agbaje respektive Jared Leto.