Callum Keith Rennie was born on September 14, 1960 in Sunderland, Tyne and Wear, to Scottish parents. When he was four years old, the family immigrated to Canada. He started his career in Canadian film and television projects, where his portrayal of Stanley Raymond Kowalski on the television series Due South was his first international success. After years acting in over one hundred and twenty five Canadian and international projects, he became widely known for his portrayal of the Cylon Leoben Conoy on Battlestar Galactica, and following that, his role as record producer Lew Ashby on the Showtime series Californication.

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