The enigmatic Nightcracker is an inhabitant of earth-41, where he is a member of the team know as Nimrod Squad. Nightcracker resembles earth-0 Red Tornado and Image Comics‘ Diehard. (with some minor traits of Super-Patriot). It is unclear if Nightcracker is a fully robotic entity or if he is a cyborg.
He participated with the rest of the Nimrod Squad against Darkseid and the Annihilator, an enemy of Spore, when they battled for the control of a multiversal crack.