THE SUICIDE SQUAD, advance US poster, David Dastmalchian as Polka-Dot Man, Sean Gunn as Weasel, John Cena as Peacemaker, Nathan Fillion as T.D.K., Daniela Melchior as Ratcatcher II, Sylvester Stallone as King Shark, Idris Elba as Bloodsport, Margot R