Desma Yarrow was a Starfleet security officer who was assigned to Deep Space 9. Yarrow held the rank of Ensign. In 2371, Bannik encountered Ensign Yarrow at the airlock to a Scythian starship docked at the station. Yarrow informed Bannik that Ambassador Karrig had given her and Odo orders not to let anyone but him meet with the Scythians. Yarrow briefly met with a Scythian individual who attempted to leave the ship. Yarrow was later killed by a Lykotian. (DS9 video game: Harbinger)