David Dastmalchian as Polka-Dot Man

Fans will recognize David Dastmalchain from his work in The Dark Knight, both Ant-Man films, and Blade Runner 2049. There he has had small roles, and The Suicide Squad will mark his jump into a starring position. Gunn has seen fit to cast him as Polka-Dot Man, a lesser-known Batman villain. Abner Krill was a low-level crook in the comics who tried to make a name for himself with bizarre, spot-themed crimes and a costume to match. Gunn has a fondness for pretty obscure comic characters, and the character is said to lean into the embarrassment of his lame abilities, so this seems right up the filmmaker's alley.