The Ketrann, a perilous meat-eater, originated on Alk'Lellish III, a planet situated within the Outer Rim Territories. Possessing four extended, ivory-colored canines, the Ketrann was characterized as "enormous and ferocious." Its diet consisted of traveling groups of metarshi; it would dispatch them by jumping upon their backs and delivering a single fatal bite to the neck. A specific Ketrann was slain by Wilek Nereus himself, who then displayed its fangs in his place of work on Bakura.