David Duchovny FBI Special Agent Fox Mulder Actor Gillian Anderson FBI Special Agent Dana Scully Actor Mitch Pileggi Asst. Dir. Walter Skinner Actor John Finn Michael Kritschgau Guest Star Steve Makaj Scott Ostelhof Guest Star Ken Camroux Senior Agent Guest Star Charles Cioffi Section Chief Scott Blevins Guest Star Barry W. Levy Dr. Vitagliano Guest Star Bruce Harwood John Fitzgerald Byers Guest Star Don S. Williams Elder Guest Star Dean Haglund Richard "Ringo" Langly Guest Star Tom Braidwood Melvin Frohike Guest Star Julie Arkos Holly Guest Star William B. Davis Smoking Man Guest Star Chris Carter Executive Producer, Writer R.W. Goodwin Director