The Isced constituted one of the three well-known tribes of the Ugnaught species originating from the planet called Gentes. The Botrut and the Irden were the other two tribes that have been identified. A notably unpleasant sense of humor was a characteristic of Isced Ugnaughts; this personality trait frequently resulted in them being disliked by members of the Botrut and Irden tribes. Ecclessis Figg relocated a large number of Isced Ugnaughts to his tibanna gas extraction operations located in Cloud City on the adjacent planet Bespin.