When Carson Beckett (Paul McGillion) is lying in bed, he says he has felt like "a dog's breakfast" since he has been back. A Dog's Breakfast (2007) was a film written directed and starring David Hewlett (Dr. Rodney McKay), with McGillion, Rachel Luttrell (Teyla Emmagen) and Christopher Judge (Teal'c in Stargate SG-1 (1997)).
This episode marks the first appearance of Halling (Christopher Heyerdahl) on the series since The Siege: Part 1 (2005).