Escrito por: Glen Morgan y James Wong
Dirigido por: David Nutter

• Senator Richard Matheson (Raymond J. Barry)
• Student (Lisa Ann Beley)
• Cigarette-Smoking Man (William B. Davis)
• Dr. Troisky (Les Carlson)
• Aide (Fulvio Cecere)
• Jorge Concepcion (Mike Gomez)
• Agent Morris (Deryl Hayes)
• Lewin (Gary Hetherington)
• Commander (Dwight McFee)
• Samantha age 8 (Vanessa Morley)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Fox age 12 (Marcus Turner)
• Rand (Bob Wilde)

Escrito por: Chris Carter
Dirigido por: Daniel Sackheim

• Detective Norman (Freddy Andreiuci)
• Agent Brisentine (Marc Bauer)
• 1st Workman (Matthew Bennet)
• Russian Engineer (Dmitri Boudrine)
• Dmitri (Raoul Ganee)
• Federal Marshal (William MacDonald)
• Charlie (Don Mackay)
• Man on Phone (Hrothgar Matthews)
• Flukeman (Darin Morgan)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Dr. Zenzola (Gabrielle Rose)
• Foreman (Ron Sauve)

Teleplay por Glen Morgan y James Wong
Story por Darin Morgan
Dirigido por: David Nutter

• Frohike (Tom Braidwood)
• Sheriff Spencer (John Cygan)
• Harry McNally (Andre Daniels)
• Mother (Kathleen Duborg)
• Security Guard (David Fredericks)
• Mrs. McRoberts (Kimberly Ashlyn Gere)
• Langly (Dean Haglund)
• Taber (John Harris)
• Clerk (B. J. Harrison)
• Byers (Bruce Harwood)
• Bus Driver (William MacKenzie)
• Mechanic (Gerry Rousseau)
• Edward Funsch (William Sanderson)
• Mrs. Adams (Diana Stevan)
• Larry Winter (George Touliatos)

Escrito por: Howard Gordon
Dirigido por: Rob Bowman

• Dr. Girardi (David Adams)
• Team Leader (Paul Bittante)
• Cigarette-Smoking Man (William B. Davis)
• Dr. Grissom (Claude de Martino)
• Sal Matola (Jonathan Gries)
• Dr. Charyn (Anna Hagan)
• Det. Horton (Mitchell Kosterman)
• Agent Alex Krycek (Nicholas Lea)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Dr. Pilsson (Michael Puttonen)
• Henry Willig (Don Thompson)
• Augustus Cole (Tony Todd)
• Mr. X (Steven Williams)

Escrito por: Chris Carter
Dirigido por: Chris Carter

• Clerk (Tosca Baggoo)
• Cigarette-Smoking Man (William B. Davis)
• Bob (Tim Dixon)
• Marksman #2 (Michael Dobson)
• Agent Rich (Fred Henderson)
• Agent Alex Krycek (Nicholas Lea)
• Officer (Robert Lewis)
• Agent Janus (Prince Maryland)
• FBI Agent (David McKay)
• Tactical Commander (Stephen E. Miller)
• Gwen (Barbara Pollard)
• Agent Kazdin (CCH Pounder)
• Duane Barry (Steve Railsback)
• Marksman #1 (John Sampson)
• Kimberly (Sarah Strange)
• Dr. Hakkie (Frank C. Turner)

• Dr. Ruth Slaughter (Meredith Bain-Woodward)
• Cigarette-Smoking Man (William B. Davis)
• Video Technician (Robyn Douglass)
• Dwight (Peter LaCroix)
• Margaret Scully (Sheila Larken)
• Agent Alex Krycek (Nicholas Lea)
• Patrolman (Steve Makaj)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Duane Barry (Steve Railsback)
• Deputy (Bobby L. Stewart)
• Mr. X (Steven Williams)

Escrito por: Chris Ruppenthal, Glen Morgan y James Wong
Dirigido por: David Nutter

• Garrett Lore (Roger Allford)
• Detective Nettles (Frank Ferrucci)
• Officer (Guyle Frazier)
• Dr. Browning (Ken Kramer)
• Guard (David Livingstone)
• Fireman (Brad Loree)
• Detective Munson (Tom McBeath)
• The Son/John (Frank Military)
• The Father (Gustavo Moreno)
• Kristen Kilar (Perrey Reeves)
• Commander Carver (Malcolm Stewart)
• Dr. Jacobs (John Tierney)
• The Unholy Spirit (Justina Vail)
• David Yung (Richard Yee)

Escrito por: Glen Morgan y James Wong
Dirigido por: R.W. Goodwin

• Frohike (Tom Braidwood)
• Dr. Daly (Jay Brazeau)
• Nurse Owens (Nicola Cavendish)
• Captain William Scully (Don Davis)
• Cigarette-Smoking Man (William B. Davis)
• Nurse Wilkins (Lorena Gale)
• Langly (Dean Haglund)
• Byers (Bruce Harwood)
• Margaret Scully (Sheila Larken)
• Melissa Scully (Melinda McGraw)
• Overcoat Man (Ryan Michael)
• Young Dana Scully (Tegan Moss)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Mr. X (Steven Williams)

• Peter Tanaka (Hiro Kanagawa)
• Eric Parker (David Kaye)
• Vosberg (David Lewis)
• Dr. Adam Pierce (Tuck Milligan)
• Jason Ludwig (Leland Orser)
• Technician (Torben Rolfsen)
• Jesse O'Neil (Shawnee Smith)
• Dr. Daniel Trepkos (Bradley Whitford)

• Beth Kane (Gillian Barber)
• Old Man (Robert Clothier)
• Sheriff Mazeroski (Steve Eastin)
• Gary Kane (Bob Frazer)
• Crew-Cut Man (Lindsey Ginter)
• Rick (Cameron Labine)
• 1st Officer (Brian McGugan)
• 1st Man (Gerry Naim)
• Richard Odin (Mark Rolston)
• Katie (Elisabeth Rosen)
• Brad (Tony Sampson)
• Gerd Thomas (Paul Sand)
• Woman Reading Words (Crystal Verge)

• Dorothy (Frances Bay)
• Stan Phillips (Eric Christmas)
• Hal Arden (David Fresco)
• Michelle Charters (Teryl Rothery)
• Gung (Sab Shimono)
• Laura Kelly (Tasha Simms)

Escrito por: Sara Charno
Dirigido por: Rob Bowman

• Mrs. Thibodeaux (Joy Coghill)
• Det. Joe Darnell (Robyn Driscoll)
• Officer #1 (Peter Fleming)
• Young Cokely (Emanual Hajek)
• Lt. Brian Tillman (Terry O'Quinn)
• Young Mom (Sarah Jane Redmond)
• Det. B.J. Morrow (Deborah Strang)
• Old Harry Cokely (Morgan Woodward)

Escrito por: Chris Carter
Dirigido por: David Nutter

• Donnie Pfaster (Nick Chinlund)
• Ellen (Glynis Davies)
• Prostitute (Kathleen Duborg)
• Coed (Ciara Hunter)
• Satin (Deanna Milligan)
• Mr. Fiebling (Dwight McFee)
• Young Woman (Maggie O'Hara)
• Agent Busch (Mark Saunders)
• Jackson Toews (Robert Thurston)
• Agent Moe Bocks (Bruce Weitz)
• Karen Kosseff (Christine Willes)
• Marilyn (Denalda Williams)

Escrito por: Glen Morgan y James Wong
Dirigido por: Kim Manners

• Paul Vitaris (Doug Abrahams)
• Mrs. Paddock (Susan Blommaert)
• Jim Ausbury (Dan Butler)
• Jerry Thomas (Franky Czinege)
• Barbara Ausbury (Michelle Goodger)
• Andrea (Laura Harris)
• Deborah Brown (P. Lynn Johnson)
• Pete Calcagni (Shawn Johnston)
• Dave Duran (Travis MacDonald)
• Shannon Ausbury (Heather McComb)
• Sheriff John Oakes (Larry Musser)

Escrito por: Howard Gordon
Dirigido por: Rob Bowman

• Col. Wharton (Daniel Benzali)
• Jack McAlpin (Kevin Conway)
• Private Kittel (Roger Cross)
• Robin McAlpin (Katya Gardener)
• Private Harry Dunham (Matt Hill)
• Lt. Foyle (Peter Kelamis)
• Skinny Man (Adrien Malebranche)
• Groundskeeper (Callum Keith Rennie)
• Chester Bonaparte (Jamil Walker Smith)
• Mr. X (Steven Williams)
• Pierre Bauvais (Bruce Young)

Teleplay por Chris Carter
Story por David Duchovny y Chris Carter
Dirigido por: Nick Marck

• Reverand Sistrunk (Linden Banks)
• 2nd Doctor (Oliver Becker)
• Agent Ambrose Chapel (Tom Butler)
• Bill Mulder (Peter Donat)
• Dr. Prince/Gregor (Dana Gladstone)
• FBI Agent (David L. Gordon)
• Field Doctor (Bonnie Hay)
• Federal Marshal (Tim Henry)
• Agent Weiss (Andrew Johnston)
• Sgt. Al Dixon (James Leard)
• Samantha Mulder (Megan Leitch)
• Military Policeman (Michael McDonald)
• Jailer (Capper McIntyre)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Newspaper Clerk (Kim Restell)
• Proprietor (Ken Roberts)
• 1st Crewman (Michael Rogers)
• Captain (Richard Sargent)
• Mrs. Mulder (Rebecca Toolan)
• Pilot (Brian Thompson)

Escrito por: Frank Spotnitz
Dirigido por: Rob Bowman

• 2nd Doctor (Oliver Becker)
• Sharpshooter (J.B. Bivens)
• Lt. Wilmer (Colin Cunningham)
• Captain (Garry Davey)
• Bill Mulder (Peter Donat)
• Dr. Prince/Gregor (Dana Gladstone)
• Field Doctor (Bonnie Hay)
• Agent Weiss (Andrew Johnston)
• Samantha Mulder (Megan Leitch)
• Able Gardner (Allan Lysell)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Pilot (Brian Thompson)
• Mr. X (Steven Williams)
• Paramedic (Beatrice Zeilinger)

Escrito por: Steven DeJarnatt
Dirigido por: James Whitmore Jr.

• Ray Floyd (Charles Andre)
• Willa Ambrose (Jayne Atkinson)
• Frohike (Tom Braidwood)
• Red Head Kid (Garvin Cross)
• Trucker (Tom Glass)
• Kyle Lang (Lance Guest)
• Byers (Bruce Harwood)
• Ed Meecham (Jack Rader)
• Sophie (Jody St. Michael)

Teleplay por Alex Gansa y Howard Gordon
Story por Howard Gordon
Dirigido por: Rob Bowman

• Halverson (Mar Andersons)
• Lt. Harper (Dmitry Chepovetsky)
• Captain Barclay (David Cubitt)
• Ionesco (Stephen Dimopoulos)
• Olafsson (Vladimir Kulich)
• Sailor (John McConnach)
• Nurse (Bob Metcalfe)
• Dr. Lasko (Claire Riley)
• Trondheim (John Savage)

Escrito por: Darin Morgan
Dirigido por: Kim Manners

• Mr. Nutt (Michael Anderson)
• Curator (Alex Diakun)
• The Conundrum (The Enigma)
• Sheriff Hamilton (Wayne Grace)
• Reverand (Alvin Law)
• Glazebrook (John Payne)
• Dr. Blockhead (Jim Rose)
• Lanny (Vincent Schiavelli)
• Waiter (Debis Simpson)
• Glazebrook [older] (Blair Slater)
• Hepcat Helm (Gordon Tipple)
• Glazebrook [younger] (Devin Walker)

• Golda (Lilyan Chauvin)
• Maggie Holvey (Helena Clarkson)
• Calusari #2 (Bill Croft)
• Nurse Castor (Jacqueline Dandeneau)
• Dr. Charles Burk (Bill Dow)
• Calusari #4 (George Josef)
• Head Calusari (Kay E. Kuter)
• Calusari #3 (Campbell Lane)
• Charlie/Michael Holvey (Joel Palmer)
• Steve Holvey (Ric Reid)
• Teddy Holvey (Oliver Wildsmith & Jeremy Isaac Wildsmith)
• Karen Kosseff (Christine Willes)

• Elizabeth (Lynda Boyd)
• Mother at Bus Station (Chilton Crane)
• Cigarette-Smoking Man (William B. Davis)
• Bobby Torrence (Kim Kondrashoff)
• U.S. Marshal Tapia (Dean Norris)
• Dr. Simon Auerbach (Morris Paynch)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Paul (John Pyper-Ferguson)
• Dr. Torrence (Bill Rowat)
• Bus Driver (Alvin Sanders)
• Dr. Osbourne (Charles Martin Smith)
• Steve (John Tench)
• Angelo Garza (Angelo Vacco)
• Winston (Jude Zachary)

Escrito por: Vince Gilligan
Dirigido por: James Contner

• Government Scientist (Forbes Angus)
• 2nd Officer (Steve Bacic)
• Security Guard (Craig Brunanski)
• Det. Barron (Nathaniel Deveaux)
• Barney (Guyle Frazier)
• Dr. Davey (Kevin McNulty)
• Doctor (Robert Rozen)
• Dr. Banton (Tony Shalhoub)
• Det. Kelly Ryan (Kate Twa)
• Mr. X (Steven Williams)
• Night Nurse (Donna Yamamoto)

Escrito por: Frank Spotnitz
Dirigido por: Rob Bowman

• Sheriff Tom Arens (Gary Grubbs)
• Doris Kearns (Caroline Kava)
• George Kearns (John MacLaren)
• Creighton Jones (Hrothgar Matthews)
• Walter Chaco (John Milford)
• Paula Gray (Gabrielle Miller)
• Worker (Robert Moloney)
• Dr. Vance Randolph (Robin Mossley)
• Maid (Carrie Cain Sparks)
• Jess Harold (Timothy Webber)

Teleplay por Chris Carter
Story por David Duchovny y Chris Carter
Dirigido por: R.W. Goodwin

• Frohike (Tom Braidwood)
• 2nd Senior Agent (Ken Camroux)
• The Thinker (Bernie Coulson)
• Stealth Man (Mitch Davies)
• Cigarette-Smoking Man (William B. Davis)
• Antonio (Aurelio Dinunzio)
• Bill Mulder (Peter Donat)
• Langly (Dean Haglund)
• Byers (Bruce Harwood)
• Agent Alex Krycek (Nicholas Lea)
• Agent Kautz (Paul McLean)
• Father (Byron Chief Moon)
• Josephine Doane (Renae Morriseau)
• Asst. Director Walter Skinner (Mitch Pileggi)
• Senior Agent (Michael David Simms)
• Albert Hosteen (Floyd "Red Crow" Westerman)