Origin
Kurrgo first recruited the Fantastic Four to help save his civilization, sending his powerful robot to Earth to get them. After Reed Richards miniaturized his civilisation so they could all escape on a single available flying saucer Kurrgo lingered back on the planet hoping to stay his normal size (four foot) and thus be a gargantuan who could lord it over his race on their new home. In lingering he was apparently destroyed although it later emerged that in fact he had been saved by his robot and then returned to Earth. He teamed up with the Leader to capture the survivor out of a battle between the Thing and the Hulk but in the ensuing chaos was apparently killed.
Creation
Created by Stan Lee and Jack Kirby.