|Position||Officer romulan military|
Liviana Charvanek (also known as Di'on Charvon or Thea) was a female Romulan military officer in the 23rd and 24th centuries. She was the niece of the famed commander Ael t'Rllaillieu and of Emperor Shiarkiek, though on different sides of the family. She had a sister, who was also a commander in the Romulan Grand Fleet: Mirek. She was also the cousin of Tafv, and through Shiarkiek was distantly related to her eventual husband, Narviat. As of 2268, Charvanek was a fleet commander, in command of three Romulan Star Empire vessels, which intercepted the USS Enterprise as it illegally crossed the Romulan Neutral Zone. She hoped to bring the Federation's flagship to Romulus as a trophy, and attempted to seduce the ship's Vulcan science officer, Spock, in order to gain control of the vessel. However, she herself was captured, as well as the prototype cloaking device aboard her ship, the ChR Memenda.