Roger Anthony Lemke is a versatile Canadian television and film actor, writer and screenwriter. He is best known to international audiences for portraying the mercenary "Three" (Marcus Boone) on the Syfy sci-fi drama series Dark Matter. Lemke graduated with a degree in Theatre Arts from the University of Waterloo. He is well-known for his ability to seamlessly navigate both English and French language productions. In a unique career pivot, he also studied law at the prestigious McGill University Faculty of Law, graduating with degrees in both Civil and Common Law in 2007.