Though he may have only lasted two episodes of Gotham--appearing as "The Mask" Richard Sionis in Seasons 1 and 2--Todd Stashwick isn't ready to leave the DC universe just yet. The actor, who also stars on 12 Monkeys as Deacon, will co-write the sequel to Suicide Squad.The Hollywood Reporter confirms that Stashwick and co-writer David Bar Katz will tackle the script, alongside Suicide Squad 2 director Gavin O'Connor.