Television special
In 2006, Therriault portrayed Tommy Douglas in the CBC Television special "". He was subsequently nominated for a Gemini Award for Best Performance by an Actor in a Leading Role in a Dramatic Program or Mini-Series. The show received a total of nine nominations, including Best Writing in a Dramatic Program or Mini-Series and Best Dramatic Mini-Series. However, it was also heavily criticised for its historical inaccuracies, leading the CBC to pull it from future broadcasts.