The Klingon captain whose cloaked Bird-of-Prey took Picard and Data secretly to Romulus in search of Spock.
K'Vada commands the Klingon Bird-of-Prey that Gowron reluctantly provides to Picard when Picard calls in a favor. He is gruff and resents being ordered to ferry Starfleet officers into Romulan space, and he makes little effort to hide his contempt for his passengers.
In Unification and Unification, Part II, K'Vada carries Picard and Data across the Neutral Zone under cloak, and en route he passes on the news that Sarek has died. His ship remains Picard's link to the outside while the Romulan plot to invade Vulcan unfolds.