Xever Montes was one of Oroku Saki's top henchmen, alongside Chris Bradford. Once mutated into Fishface, he became even more of a force to be reckoned with. Xever is also a crime boss of the Brazilian mob in New York City, who call him Mr. X. Since the Shredder's resurrection by Kavaxas, Xever has parted ways with what remains of the Shredder's subordinates and is no longer an antagonist, but he still wants to live the life of a criminal.