Kohlar, son of Kolax, was a Klingon commander of a generational D7-class Klingon battle cruiser that ended up in the Delta Quadrant. Beginning with his great-grandfather, Kohlar was one of the four generations, of Klingons that were searching for the kuvah'magh, or savior. In 2377, when he first encountered USS Voyager, he believed that the Federation and Klingon Empire were still at war, but Captain Kathryn Janeway was able to convince him that they were at peace.