Nathan Stephenson

Nathaniel Stephenson (born July 27, 1986), 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. He also had a recurring role as Griffin Pierce-Taylor, an HIV-positive university student, in Degrassi: The Next Generation (2007–2008).

Early life Stephenson was born in Toronto, Ontario. He began performing in community musical theatre as a child, including playing Judah in a production of Joseph and the Amazing Technicolor Dreamcoat. He attended Unionville High School in Markham, Ontario, where he was enrolled in the Arts York Drama program. The series won the Gemini Award for Best Children's or Youth Fiction Program in 2005.

In 2007, Stephenson joined the cast of Degrassi: The Next Generation for its seventh season as Griffin Pierce-Taylor, an engineering student who is HIV-positive. The character, who was born with HIV due to his mother's drug use during pregnancy, enters a serodiscordant relationship with main character Paige Michalchuk; the storyline addressed themes of stigma and disclosure.

That same year, Stephenson appeared in the Disney Channel television film Twitches Too as Marcus WarBurton. His other credits include guest appearances on Naturally, Sadie, Dark Oracle, and The Dresden Files, as well as a supporting role as Gord in the 2010 Family Channel television film My Babysitter's a Vampire, which served as a pilot for the subsequent series.

Stephenson's later work consisted primarily of voice acting, including the role of Jasper in the animated series Pearlie (2009–2010). His final credited role was as Klaus in BeyWarriors: BeyRaiderz (2014).