A Starfleet cadet of Red Squad serving as acting first officer of the USS Valiant, fiercely loyal to Captain Tim Watters and intolerant of any doubt about the ship's mission.
Karen Farris appears in Valiant, played by Courtney Peldon.
She is one of the elite cadets left in control of the Valiant after its officers were killed early in the Dominion War, and holds the acting rank of commander as Tim Watters's first officer. When Jake Sisko and Nog are rescued by the ship in 2374 she welcomes Nog, a fellow member of Red Squad, but treats the civilian Jake as a threat to discipline.
Farris enforces Watters's authority without question. She reprimands Dorian Collins for speaking to Jake about home and has Jake confined when he argues against attacking a huge Dominion battleship. She dies on the bridge when the attack fails and the Valiant is destroyed.