Kolass vestai-Rixen was a 23rd century Klingon enlisted crewperson, in service to the Klingon Empire's Star Navy as a sensor officer operator at the outpost on planet Valtor III in the 2280s. In 2286, Kolass was present on the outpost during the visit of the IKV Malevolent and a subsequent investigation into the outpost's command structure. (FASA RPG module: A Matter of Priorities)