Dr. Arnold is played by Michael Therriault, a Canadian actor who played Tommy Douglas in Prairie Giant: The Tommy Douglas Story. Tommy Douglas was Kiefer Sutherland's grandfather, and an important figure in Canadian politics. At one time, Sutherland indicated he would play the role of his grandfather in Prairie Giant, but in the end the role went to Therriault.
This episode takes place from February 6 to February 7, 2016.