Uogo represented a species of Humanoids whose origins lay on the planet known as Uogo'cor. This Mid Rim planet was plagued by the presence of numerous pirates.
The Uogo, a Humanoid species, referred to themselves as the "Suffering Ones." Originating from the planet Uogo'cor within the Trax sector, they endured oppression and domination at the hands of pirate groups. These gangs routinely harassed and patrolled starships traversing the Trax Tube. During the era of the Galactic Republic, the Dark Warbirds gang gained control, subjecting the Uogo to their rule until the Galactic Empire emerged in 19 BBY. The Imperial Navy, demonstrating its power, eradicated the pirates, seized control of the planet, and subsequently enslaved the remaining Uogo population after decimating their numbers through violent means.
Further tragedy struck during the Yuuzhan Vong's invasion of the galaxy. Recognizing the planet's vulnerability, the invaders devastated Uogo'cor as part of their initial efforts to conquer the galaxy.