In this episode both Michael Shanks and Amanda Tapping play two different characters. Shanks played Dr. Daniel Jackson and supplied the voice of Thor; Tapping played Lt. Colonel Samantha Carter and the RepliCarter.
Jeff Judge, who plays Aron, is Christopher Judge's younger brother. He also plays Aron in Sacrifices (2004), Reckoning: Part 2 (2005), The Fourth Horseman: Part 1 (2005), and The Fourth Horseman: Part 2 (2006).