Initially rescued by Batman and returned to Arkham, he is the target of the Suicide Squad's mission due to a thumbdrive in his cane. He reveals himself as a former squad member who can disarm the nano-bombs, helps the team, but ultimately escapes during the chaos after Waller's betrayal.
Frost is tasked with eliminating the Riddler, creating immediate tension.
Shared squad history allows the Riddler to negotiate a survival deal.
Batman initially saves the Riddler, setting the entire plot in motion.
Explore the full interactive character relationship map of Batman: Assault on Arkham