T'Mor was one of the team assigned to provide security during the inauguration ceremonies for Governor Ra'ch B'ullhy of Damiano. She was partnered with Damiani security officer Go'en C'ullho, who was secretly a member of the plot to assassinate Ra'ch. When initial attempts were foiled, T'Mor was drugged while she and Go'en patrolled the roof of the Or'dov Building, and then subjected to the Chova, an ancient telepathic weapon. When T'Mor returned to the Enterprise, she spread the hallucination-inducing mind weapon throughout the ship. Her Vulcan mental discipline allowed her to reconstruct her abduction, and aid the Enterprise crew in disarming the weapon.
T'Mor was an advanced practitioner of the Klingon mok'bara. Also in 2371, she attempted to become a ghojmoHwI' (teacher), but failed when she was thrown by her instructor, Worf. (TNG comic: Perchance to Dream)