Suicide Squad: Kill the Justice League is the first game in the "Batman: Arkham" series to not feature Batman as the main protagonist, though he does still appear in the game. At The Game Awards 2022, a trailer for the game was released which ended with a brief tribute to longtime Batman voice actor Kevin Conroy, who passed away on November 10, 2022. Host Geoff Keighley then confirmed that Conroy would be voicing Batman "one final time" in Suicide Squad: Kill the Justice League; this game being Conroy's final performance as Batman was a major promotional point in online articles. However, on January 30, 2024, days prior to the game's release, IGN reported that there were two additional projects he recorded lines for as Batman prior to his death that would be released posthumously. While one of those projects, "Batman: Caped Crusader", ultimately did not feature Conroy, the other reported project, "Justice League: Crisis on Infinite Earths – Part 3", was later confirmed to be Conroy's actual final performance as Batman, making his purported last performance in Suicide Squad: Kill the Justice League false advertising.