Mister Oz

Jor-El was a prominent scientist on his home planet, Krypton. According to his research, Krypton would be destroyed in a great catastrophe. Unfortunately, the Kryptonian Science Council ignored his pleas for evacuation, later expelling him. Six months later, Jor-El's predictions were proven correct. Due to the ignorance of other scientists, no one was prepared to evacuate. He and his wife Lara Lor-Van shot their son Kal-El into space using their last remaining prototype spaceship. Afterwards, Kal-El landed on Earth, and grew up as Clark Kent.

As Krypton was crumbling, Jor-El was whisked away by an unseen force, and taken to Earth where he crashed in a war-torn nation. After being nursed back to health by locals, Jor-El saw first hand the atrocities of man, as a dictator usurped all of what the people owned, causing them to starve. After witnessing these atrocities, Jor-El was forced to watch the horrors of mankind over the centuries by the unseen being that saved him.

Shortly after witnessing man's evils, Jor-El adopted the moniker of Mister Oz and began manipulating certain events from behind the scenes. He imprisoned Doomsday, Prophecy, Red Robin, and Batman of a possible future as they were causing timelines to unfold that weren't meant to. In Doomsday's case, it was also to keep him from killing Superman again. He also frequently either helped or hindered Superman and his family, executing his brother Zor-El, deeming it a mercy killing.