Elseworlds storyline Superman: The Last Family of Krypton, when Jor-El and Lara accompany Kal-El to Earth, they have two more children, Bru-El and Valora, whose genetic potential is slightly 'stunted' compared to their brother due to them being born on Earth. As part of his vendetta against the El family, Lex Luthor is able to turn Bru-El against his family, using a series of nanites designed to make him immune to kryptonite to make him essentially addicted to it, transforming him into a kryptonite-powered superhuman with too little willpower to defy Luthor's orders. He subsequently kills his mother in the attack on the El compound, but Kal-El is able to defeat his brother when he expends too much of his energy. With Luthor's plot defeated, Bru-El is purged of the nanites, at the cost of losing his memory; with Lara's last words being that Bru-El never learn of his role in his mother's death, he is last recorded as having reached an eighth-grade level following his mindwipe. Kryptonite Man in other media The Kryptonite Kid appears in the Superboy episode "Kryptonite Kid", played by Jay Underwood. A young man named Mike Walker, working at a military research base, was caught in a Kryptonite explosion while trying to find a way to make Superboy immune to Kryptonite radiation. The Kryptonite entered his bloodstream, as well as his nervous system, turning his skin green and affecting his mind in vicious ways. Walker became "living, breathing Kryptonite," able to fire Kryptonite radiation from his hands. Superboy was able to defeat him through enlisting the aid of a human man who had been arrested for fraud in taking advantage of his resemblance to Superboy to make money and attract girls. In exchange for getting the charges dropped, Superboy convinced the man to stand up to Walker, whereby Walker's Kryptonite beams had no effect on him. With Mike Walker distracted as to why he was not harming the Superboy impersonator, Superboy then wrapped up Walker in a lead tarp, where eventually the Kryptonite would be cleansed from Walker's body. Kulak Kulak is a sorcerer and supervillain in the DC Universe. The character was created by Jerry Siegel and Bernard Baily and first appeared in All Star Comics #2 (Fall 1940). Within the context of the stories, Kulak is the high priest of the dead planet Brztal who had been imprisoned on Earth in antiquity. When