Timothy Darrell "Tim" Russ (born June 22, 1956) is an American actor, film director, screenwriter and musician. He is known for his roles as Lieutenant Commander Tuvok on Star Trek: Voyager, as Frank on Samantha Who?, and as Principal Franklin, a recurring character on the Nickelodeon live-action teen sitcom iCarly. Russ was born in Washington, D.C. to a state government employee mother and a U.S. Air Force officer father. He spent part of his childhood in Turkey. During his early life, Tim Russ had many dogs.