Since Spring 2024, Suicide Squad: Kill the Justice League has slowly added new story content via the introduction of new playable characters. These villainous additions stem from other dimensions where other civilization-collecting Brainiacs took over alternate Earths. In Season 1, a younger version of the Joker was added to the squad, and in the recent Season 2, a female version of Mister Freeze called Mrs. Freeze reluctantly joined the squad.