Janeway’s long-time trusted adviser, Lieutenant (later Lieutenant Commander) Tuvok is Chief of Security aboard Voyager and second officer. Vulcan through-and-through, Tuvok applies logic and discipline aboard the ship. Tuvok’s relationship with the Maquis, Chakotay in particular, is abrasive after having been placed aboard their ship as a spy.

Portrayed By: Tim Russ

Position/Role: Lieutenant Commander, Lieutenant (Chief of Security)

Race: Vulcan

Duration: Seasons 1-7