The low-frequency hum that passes for emotion on The X-Files may seem almost Bressonian when compared to the overheated style of most TV acting, but over the years Mulder and Scully have found plenty of cause to tear away their masks. It’s noteworthy that Mulder, who lost his father, and Scully, whose sister was killed and who herself was stricken by a mysterious cancer, are the show’s most important casualties. That the two often operate at an emotionally low register indicates their professionalism (big agents don’t cry), but, critically, their blankness also serves as a reminder that Mulder and Scully are more spectators to the surrounding madness than active participants. Which, more than anything else, explains their appeal to the some 20 million Americans who every week hitch a ride on their tribulations.
L.A. Weekly, June 1998