High General Jax-Ur was once supreme commander of the planet Krypton's military forces.
A brilliant warrior, Jax-Ur was trusted by the ruling council for many years until he grew power hungry. Believing the council too weak, he attempted to seize control of the planet. However, his attempted coup d'état was foiled by Jor-El. Jax-Ur was tried, found guilty, and sentenced to eternal imprisonment in the Phantom Zone.
Years later, Jax-Ur was released by his faithful second-in-command, Mala, who had received a shortened sentence and whom Superman had released from the Phantom Zone on the basis that her sentence was served in full. Developing powers that made them together stronger than Superman, they overpowered him and sent him into the Phantom Zone, and proclaimed themselves rulers of the Earth. However, Superman was retrieved, and lured Jax-Ur and Mala into a trap, sending them back to the Zone.
Superman would encounter them again in another part of the galaxy, where an unexpected rift in the Phantom Zone had released them into space. They seized control of a nearby planet, re-making it and its people in Krypton's image. Superman was initially hesitant to intervene, feeling that, whatever his personal feelings, Jax-Ur seemed an efficient ruler, and his subjects seemed content under his guidance. That changed quickly when Superman encountered a member of the planet's underground resistance, who revealed that the Kryptonians were tyrants who were preparing their planet for an invasion of Earth. In a fight with the Kryptonians' battle fleet, Jax-Ur and Mala were sucked into a black hole, never to be seen again.
Powers and abilities
Being a Kryptonian, Jax-Ur had powers equal to Superman's after exposure to Earth's yellow sun: super-strength, super-speed, invulnerability, enhanced hearing and sight, X-ray and heat vision, and flight.
In addition, Jax-Ur was a brilliant strategist and tactician.
In the comics, Jax-Ur is a mad Kryptonian scientist who was banished to the Phantom Zone for his reckless and dangerous experiments, the last of which accidentally destroyed one of Krypton's moons, taking five hundred Kryptonian lives with it.
- Goodman, Robert (writer) & Riba, Dan (director) (September 9, 1997). "Blasts From the Past, Part II". Superman: The Animated Series. Season 2. Episode 2 (airdate). Episode 17 (production). Kids WB!.
- Goodman, Robert (writer) & Riba, Dan (director) (September 8, 1997). "Blasts From the Past, Part I". Superman: The Animated Series. Season 2. Episode 1 (airdate). Episode 14 (production). Kids WB!.
- Bader, Hilary J., Burnett, Alan (writers) & Lukic, Butch (director) (January 16, 1999). "Absolute Power". Superman: The Animated Series. Season 3. Episode 6 (airdate). Episode 46 (production). Kids WB!.