Tuvok

Tuvok, a Vulcan character in the fictional Star Trek universe, was a Federation spy aboard Chakotay's Maquis ship. Both the Maquis ship and the Starship Voyager were transported to the delta quadrant. The Maquis ship was destroyed and the two crews were forced to work together on Voyager. Tuvok became Voyager's head of security. He was played by Tim Russ.

See also : Star Trek