During the era of the Galactic Civil War, a male Human individual named Hrath Koo resided on Corellia. He was affiliated with the Meatlump gang.

Subsequent to the Battle of Yavin, Hrath Koo, holding anti-technology sentiments as a Meatlump member, made his base of operations in a cave situated close to the city called Tyrena.
In the year 1 ABY, Hrath Koo engaged in the harassment of Teilo Monnro, a businesswoman. He frequently entered her establishment and deliberately ruined her projects. Following multiple instances, Monnro located Koo's whereabouts in the Meatlump Cave. Fortunately, she encountered spacers working as independent agents for the Corellian Security Force, who were investigating a Meatlump assault on Osto Grissom, a starship captain. These spacers offered assistance with her predicament. Hrath Koo met his demise when he was attacked by an unidentified Dark Jedi.
Hrath Koo made an appearance as a non-player character in the video game Star Wars Galaxies released in 2003, a massively multiplayer online roleplaying game. The game was developed by Sony Online Entertainment and distributed by LucasArts. The game was shut down on December 15, 2011. Hrath Koo was introduced to the game through the "Chapter 1: The Corellian Captives" update, which was launched on June 8, 2006.