Memory Alpha

Soval aboard the ISS Avenger

Soval was a Vulcan slave serving as an enlisted science crewman aboard the Imperial starship, ISS Avenger.

In 2155, T'Pol enlisted Soval's help to rebel against the Empire. Soval was at first reluctant to get involved, saying he was too old to be a revolutionary. When Commander Archer made an impassioned speech regarding the future of the Empire and expelled all aliens from the USS Defiant to Avenger, Soval realized something had to be done. With T'Pol, he enlisted Phlox's aid to disable the engine and weapon systems on board the Defiant so Avenger could destroy it.

Now in command of Avenger, Soval ordered her on a strafing run of the disabled ship. Unfortunately, Defiant restored its systems and destroyed Avenger with all hands, including Soval. (ENT: "In a Mirror, Darkly")

Soval was played by Gary Graham, who plays his counterpart from the mirror universe.
According to episode writer Mike Sussman, Soval's goatee is a tip of the hat to Spock, who had a similar beard in TOS: "Mirror, Mirror".