Gele'ren was a male Twi'lek slaver and successful underboss in the Hutt Cartel during the Cold War on Nar Shaddaa. He assisted the future Grand Champion of the Great Hunt in tracking down the assassin, the Eidolon, the Great Hunt target on the moon.
When Anuli sliced and uploaded Eidolon Security's records, the Eidolon retaliated by sending his assassin droid to ambush Gele'ren's base. Gele'ren and Anuli were killed in the onslaught. While contacting Hunter, the Eidolon mentioned mounting Gele'ren's severed head on his wall.