Jax-Ur

"The worst criminal in the Phantom Zone" (Act No.310,Mar 1964 "Secret of Kryptonite Six!") and one of "the most dangerous evil-doers in the universe!" (Act No.294,Nov 1962 "The Kryptonite Killer!") A “notorious outlaw” on planet Krypton prior to its destruction (SA No.5, Summer 1962), Jax-Ur, a renegade scientist as brilliant as he is evil, was exiled into the Phantom Zone for what has been described as “the most monstrous” crime ever committed by a Phantom Zone prisoner: The Destruction, perhaps deliberate, of an inhabited moon of Krypton.

List of stories with Jax-Ur

• (AC No.284, Jan 1962 "The Babe of Steel!")
• (Adv No.293, Feb 1962 "The Legion of Super-Traitors!)
• (AC No.288, May 1962 "The Man Who Made Supergirl Cry!")
• (AC No.294, Nov 1962 "The Kryptonite Killer!")
• (S No.157, Nov 1962 "The Super-Revenge of the Phantom Zone Prisoner!")
• (AC No.295, Dec 1962 "Superman Goes Wild!")
• (S No.158, Jan 1963 "Invasion of the Mystery Super-Men!")