David Duchovny FBI Special Agent Fox Mulder Actor Gillian Anderson FBI Special Agent Dana Scully Actor Mitch Pileggi Asst. Dir. Walter Skinner Guest Star William B. Davis Cigarette Smoking Man Guest Star Campbell Lane Senator Romine Guest Star Fritz Weaver Senator Albert Sorenson Guest Star John Hainsworth Gaunt Man Guest Star Olesky Shostak Bundled Man Guest Star Jan Rubes Vassily Peskow Guest Star Stefan Arngrim Prisoner Guest Star Robin Mossley Dr. Kingsley Looker Guest Star Nicholas Lea Alex Krycek Guest Star John Neville Well-Manicured Man Guest Star Malcolm Stewart Dr. Sacks Guest Star Jessica Schreier Dr. Bonita Charne-Sayre Guest Star Brent Stait Timothy Mayhew Guest Star Eileen Pedde Angie Guest Star Chris Carter Executive Producer, Writer Frank Spotnitz Writer Rob Bowman Director