Nathan Stephenson

Nathaniel Stephenson, credited as Nathan Stephenson, is a Canadian actor. He is best known for starring as Robbie "Question Mark" McGrath in the teen comedy-drama Radio Free Roscoe (2003, 2005) and as James Alexander in the sketch comedy series System Crash (2001). He also had a recurring role as Griffin Pierce-Taylor, an HIV-positive university student, in Degrassi: The Next Generation (2007, 2008).