Kohlar in 2377.
Kohlar was a Klingon commander of a generational D7 class Klingon battle cruiser that ended up in the Delta Quadrant. For generations, these Klingons 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.
Upon meeting B'Elanna Torres, who was pregnant, Kohlar believed that she was carrying the kuvah'magh. He destroyed his own ship so that he and his crew could stay aboard Voyager and witness the birth of their savior. Many of Kohlar's crew did not believe that Torres was carrying the kuvah'magh due to her half-human heritage. A battle ultimately ensued for control of Voyager. When the crew of Voyager prevailed, the Klingons were beamed down to a new planet that would become their home. (VOY: "Prophecy")
- Kohlar was played by Wren T. Brown.
Kohlar's antique bat'leth
- It is noteworthy that the bat'leth that Kohlar presented to B'Elanna at the conclusion of Prophecy is a near-twin to the Sword of Kahless (as was seen in the DS9 episode "The Sword of Kahless").
From Memory Alpha, a Wikia wiki.