Security Technician T'Hesh was a Vulcan Starfleet crewmember assigned to the refit USS Enterprise. She had a gaunt, stern face, a slight build and was a centenarian. In 2273, Commander Spock came to her quarters to ask for a focusing aid to help him meditate. She told him that she was transferring off the ship, called him a V'tosh ka'tur and refused to listen when he tried to defend his recent acceptance of emotion. (TOS novel: Ex Machina) T'Hesh is identified as the Vulcan science crewman attending the briefing on the recreation deck played by JoAnn Christy in The Motion Picture.