From Wikipedia, the free encyclopedia Brian Markinson is a Canadian film and televisionactor. He has appeared as Police Chief Bill Jacobs on Da Vinci's Inquest and Da Vinci's City Hall. He has also appeared on Continuum, Arctic Air, Traveler, NCIS, The L Word, NYPD Blue, Psych, Supernatural, Touching Evil, Taken, Dark Angel, UC: Undercover, Stargate SG-1, Star Trek: The Next Generation, Star Trek: Deep Space Nine, Star Trek: Voyager, The X-Files, Millennium, Mad Men, and TV-movie Lucky 7. In 2007, he appeared in the film Charlie Wilson's War.