Jax-Ur

Jax-Ur is a fictional character, a Kryptonian supervillain in the DC Comics Universe. He first appears in Adventure Comics #289 and was created by Otto Binder and George Papp. Jax-Ur was an amoral and criminally deviant scientist on the planet Krypton. He was imprisoned in the Phantom Zone for destroying Wegthor, an inhabited moon of Krypton (population: 500), while experimenting with a nuclear warhead-equipped rocket. His sentence for his act of mass murder was imprisonment for eternity. He called himself "the worst criminal in the Phantom Zone". Jax-Ur was bald, chubby and had a thin mustache. Jax-Ur's intention was to launch a nuclear missile to destroy a passing space rock. If this test proved successful, Jax-Ur would then commence...