Klef, a Gran of the male persuasion, resided with his kin in Coruscant's Gnawer's Roost area. His occupation was that of a bartender, employed at the Invisible Hand cantina. During a violent confrontation at the cantina, involving ISB operative Tavik Moern and Quarrens clashing with the Alderaanian Resistance, Klef sought refuge behind the bar, remaining hidden until the danger subsided.
His linguistic abilities included fluency in Basic, Gran, Huttese, Quarrenese, and Skakoverbal.