As for new faces, in addition to David Dstmalchian playing Polka-Dot Man, Daniela Melchior playing Ratcatcher and Steve Agee playing King Shark, we also have Idris Elba, John Cena, Storm Reid, Flula Borg, Nathan Fillion, Peter Capaldi, Pete Davidson, Alice Braga, Sean Gunn, Michael Rooker, Taika Waititi, Joaquín Cosío, Mayling Ng, Juan Diego Botto, Tinashe Kajese, Julio Ruiz and Jennifer Holland cast in undisclosed roles.
Initially the plan was for Elba to replace Will Smith as Deadshot, but it was later decided to have the Luther star play a different character instead.