Gele'ren was a Twi'lek male who engaged in slavery. He achieved the rank of a successful underboss within the Hutt Cartel during the period known as the Cold War on Nar Shaddaa. He provided aid to the individual who would later become the Grand Champion of the Great Hunt, helping them locate the assassin known as the Eidolon, who was a target in the Great Hunt competition, on the lunar surface.
After Anuli successfully breached and uploaded the records of Eidolon Security, the Eidolon responded by dispatching his assassin droid to launch a surprise attack on Gele'ren's headquarters. Both Gele'ren and Anuli perished during this assault. The Eidolon, while communicating with Hunter, made a remark about displaying Gele'ren's decapitated head as a trophy on his wall.