Ruwon was a Romulan diplomat in the Romulan Star Empire in the late 24th century. In 2371, he and Karina traveled to Deep Space 9 to receive Starfleet's intelligence on the Dominion. The sharing of this data was part of the deal that had been agreed upon earlier that year. The Romulans had installed a cloaking device on the USS Defiant to help the ship to penetrate Dominion space and make First Contact with the Founders. Secretly, a Romulan warbird was also sent, under cloak, to the station. Ruwon was played by Star Trek regular Jack Shearer.