|Appeared in||Superman: The Last Son of Krypton|
John Corben is an enemy of Superman who had his brain put into a robot body that was powered by a Kryptonite heart known as Metallo.
John Corben was originally a top-tier mercenary. At one time, he led a team of mercenaries to steal the Lexo-Skel Suit 5000 from LexCorp, a theft staged by Lex Luthor for the benefit of the Regent of Kaznia. When Lois Lane tracked the thieves to their ship in Metropolis Harbor, Corben caught her and prepared to kill her, but Superman intervened. To give himself a fighting chance, Corben mounted the Lexo-Skel himself and engaged Superman in a fight that raged across Metropolis, ending when Superman tore the suit apart.
Although Luthor represented to the Regent's lawyer that he had fulfilled his part of the bargain by letting "the Regent's men" take possession of the suit, Luthor subsequently acted as though Corben had been working for him.
- Superhuman Strength
- Kryptonite Emission