Daniel Kelly (born May 25, 1992), also known by his stage names Deph Naught and, more recently, Sif, is a Canadian actor and rapper. He rose to prominence for his portrayal of on the long-running teen drama series ', and has since independently released several mixtapes and music videos.
Kelly was born and raised in the Clarkson area of Mississauga, Ontario.
Kelly was cast as on the long-running teen drama series ' in 2010; he starred on the series as a regular from to . After Degrassi, he appeared on Flashpoint.
In 2014, he portrayed Kyle in the television movie Sorority Surrogate with former cast member Cassie Steele.
In 2015, he portrayed Roman in the second season of the award-winning web series Teenagers.
Using the stage names Deph Naught, and, more recently, Sif, Kelly has recorded rap music. He released numerous mixtapes and music videos on YouTube. He has collaborated with several prominent rappers, including Royce da 5'9.