Valeris

Valeris was a female Vulcan and villain in the Star Trek universe.

As a child she and her mother were abducted by renegade Klingons as part of a plot to seize a border world. When her father refused to negoiate the Klingons killed several people in front of her eyes and severely injured her mother. Valeris and the remaining hostages were rescued by a Starfleet team, but the trauma fostered a deep hatred and mistrust of the Klingons. Valeris convinced herself that her feelings towards the Klingons were logical and based in reason.

Following the destruction of the key Klingon energy production center of Praxis, Valeris was drawn into a conspiracy of Klingon, Federation, and Romulan individuals who stood to lose should the Klingons sue for peace.

Valeris was placed on board the Enterprise with two others, Yeomans Burke and Sammo. Encountering Captains Kirk and Spock, she explained that she was informed the Enterprise needed a helmsman so she volunteered. She spent the time between leaving spacedock and the initial meeting with Chancellor Gorkon's ship planting programming in the ship's computer and moving supplies around to prepare for the boarding of Gorkon's ship. When she learned that Kirk had expressed his own dislike for the Klingons in a personal log she made sure to make a copy of the log as she felt it would be useful later.

After Gorkon's ship was boarded instead of fighting it out with the Klingons as Valeris expected Kirk instead went to offer aid to the Klingons. Doctor McCoy went with him, and when McCoy could not save the chancellor the pair was arrested by Chang - himself another conspirator. In the following trial the log Valeris made a copy of was provided to the Klingons, and Change made great use of the log in the trial.

Kirk and McCoy were eventually rescued, and it was realized that Valeris was the traitor. At Kirk's orders Spock entered into a mind meld with Valeris and dragged the rest of the conspiracy into the light. The Enterprise arrived at Khitomer in time to prevent the death of the Federation President.

Following the return of the Enterprise to Earth Valeris was sentenced to life imprisonment on Jaros II. She proved resistant to rehabilitation while on the colony - despite the efforts of the prison psychologist and covert Section 31 agent to draw her out. After the death of Lance Cartwright in 2298 Valeris was the only known survivor of the conspiracy.

Valeris was recruited in 2300 to assist with a Starfleet intelligence operation. During this operation Klingon intelligence agent Kaj penetrated the shell Valeris had drawn around herself and Valeris was finally able to put her hatred of the Klingons behind her. For her role in preventing the destruction of Qo'noS Valeris was given her freedom and a new identity. As T'leris she became a civilian pilot on a Vulcan colony.