In 2003, he worked on the six-episode HBO mini-series Out of Order (2003) and later that year was cast in a lead role in National Lampoon’s Thanksgiving Family Reunion (2003), for which he won a 2004 Young Artist Award for Best Performance by a Leading Young Actor in a Television Production. He was nominated for another Young Artist Award in 2006 for Best Performance in a Short Film for his performance the short film When Jesse Was Born (2005). He appeared in many more television shows as leads and/or in guest appearances and was subsequently nominated for a 2008 Young Artist Award for Best Recurring Role in a Television Series for his work in Psych. In 2010, Calum worked on a feature film called Daydream Nation (2010 and on Caprica (2009), the new Battlestar Galactica (2004) spin-off. In 2013 he created, wrote and executive-produced, along with Derek Baynham and Kelly May, The Coppertop Flop Show-which was picked up to series by Disney Channel to air in late 2013.