 It turned out in this episode that the Samantha Mulder (Megan Leitch) who appeared was a clone.Carter did not want it to be the real Samantha, since that would have been "straight science fiction" and it was too "ridiculous" to give too many answers.Spotnitz further explained that the production crew never saw "The X-Files" as a "science fiction show", but more of a show that incorporated science fiction, and that this and previous episode "Colony" were more of a "suspense thriller" than any other genre.