In the Mirror Universe, T'Les was a female Vulcan in the 22nd century, mother of T'Pol.

T'Les was a faculty member of the Vulcan Science Academy, and an outspoken proponent of the pacifistic teachings of Surak. Several years prior to 2155, T'Les resigned her position, and disappeared from public life. She was rumored to have joined the rebellion against the Terran Empire on planet Vulcan.

T'Les was reportedly killed when the Empire attacked the rebel cell at the T'Karath Sanctuary. However, it was not generally known that T'Pau, a rebel leader on Vulcan, had ordered Staal to have her killed. (ENT novel: Age of the Empress)

It is unclear whether Staal personally killed T'Les, or if, while posing as Imperial Starfleet Ensign Willingham, he was responsible for the targeting of the T'Karath Sanctuary.

For her "real" world counterpart, see: T'Les.