This episode marks the first appearance of Chris Owens as Jeffrey Spender. Owens previously appeared in earlier episodes, the first being "Musings of a Cigarette Smoking Man", in which he played the younger version of The Smoking Man. Owens later reprised this role in episode "Demons". During the fifth season of the show, Owen was cast as The Great Mutato in "The Post-Modern Prometheus". After his stint on "The X-Files", Owens attempted to get a job as a waiter in Vancouver, to no avail. One day, however, he ran into series creator Chris Carter at a bar, who humorously told him, "I didn't know they served guys with two faces here", a reference to his portrayal of The Great Mutato. Carter explained that David Duchovny had "taken careful notice" of Owens acting abilities and requested that he return to the series in some capacity. Heeding Duchovny's advice, Carter created the role of Jeffrey Spender just for him.