From 2005 to 2006 Stuart starred as Carl Kolchak in the TV series Night Stalker. From 2005 to 2011 he did voice work for the series Robot Chicken. From 2011 to 2012 he starred in XIII: The Series, and since 2013 he has starred as Jack McAllister in the series Betrayal. He has starred in the films Trojan Eddie, Shooting Fish, Under the Skin, Resurrection Man, Simon Magus, Wonderland, The Venice Project, Mauvaise passe, About Adam, Queen of the Damned, Trapped, Shade, The League of Extraordinary Gentlemen, Head in the Clouds, The Best Man, Chaos Theory, and A Stranger in Paradise. Townsend won Best Actor awards from Fantafestival and WorldFest Houston. Stuart dated actress Charlize Theron from 2001 to 2010.
