• Tagline: THE TRUTH IS OUT THERE
• Also Starring: William B. Davis (Cigarette Smoking Man), Chris Owens (Agent Jeffrey Spender)
• And: Mitch Pileggi (Assistant Director Walter Skinner)
• Special Guest Star: Mimi Rogers (Agent Diane Fowley)
• Guest Starring: Jeff Gulka (Gibson Praise), James Pickens, Jr. (Assistant Director Kersh), Christopher Neiman (First Carpool Scientist), Kim Robillard (Homer), Arthur Taxier (Assistant Director Bart), Alan Henry Brown (Second Carpool Scientist), Scott Eberlein (Black Haired Man)
• And: Wendie Malick (Assistant Director Maslin)
• Co-Starring: Don S. Williams (1st Elder), George Murdock (2nd Elder), Rick Millikan (Sandy), Wayne Thomas Yorke (1st Workman), Wayne Alexander (Assistant Director Arnold), Ralph Meyering, Jr. (Surgeon), Benito Martinez (Orderly)
• Written By: Chris Carter
• Directed By: Kim Manners

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Bryan Cranston (Patrick Crump), Michael O'Neill (Patrol Captain), James Pickens, Jr. (Assistant Director Kersh), Harry Danner (CDC Doctor), Junior Brown (Farmer)
• Co-Starring: Linda Porter (Elderly Woman), Mindy Seeger (Coroner), Scott A. Smith (Prison Doctor), Tim Agee (EMT), Mark Craig (Trooper #1), Wiley Pickett (Trooper #2), Ken Collins (Gas Station Attendant), Tegan West (Navy Lieutenant), Tom Haile (Station Wagon Owner)
• Featuring: Frank Buckley (Nevada News Anchor), Bob Peters (Idaho News Anchor), Janine Venable (Vicky Crump), Art Pickering (Germ Suit Cop)
• Written By: Vince Gilligan
• Directed By: Rob Bowman

• Tagline: DIE WAHRHEIT IST IRGENDWO DA DRAUβEN (German -- The Truth Is Out There Somewhere)
• Also Starring: William B. Davis (Cigarette Smoking Man), Chris Owens (Agent Jeffrey Spender)
• And: Mitch Pileggi (Assistant Director Walter Skinner)
• Guest Starring: James Pickens, Jr. (Assistant Director Kersh), Madison Mason (Captain Harburg), Trevor Goddard (1st British Crewman), G.W. Stevens (2nd British Crewman), Greg Ellis (3rd British Crewman), Nick Meaney (4th British Crewman), Kai Wulff (3rd Nazi), Tom Braidwood (Frohike), Dean Haglund (Langly), Bruce Harwood (Byers)
• Co-Starring: Wolfgang Gerhard (1st Nazi), Guido Foehrweisser (2nd Nazi), Isaac C. Singleton, Jr. (1st Roughneck), Laura Leigh Hughes (Kersh's Assistant), Robert Thomas Beck (1st Mate), Robert Arce (Bald-Headed Man), Arlene Pileggi (Skinner's Assistant)
• Written By: Chris Carter
• Directed By: Chris Carter

• Tagline: THE TRUTH IS OUT THERE
• Special Guest Star: Michael McKean (Morris Fletcher)
• Guest Starring: John Mahon (General Wegman), Michael Buchman Silver (Howard Grodin), James Pickens, Jr. (Assistant Director Kersh), Scott Allan Campbell (Jeff Smoodge), Julia Vera (Mrs. Lana Chee)
• And: Nora Dunn (Joanne Fletcher)
• Co-Starring: Tyler Binkley (Terry Fletcher), Dara Hollingsworth (Christine Fletcher), Ted White (Attendant), Laura Leigh Hughes (Kersh's Assistant), Eddie Jackson (Co-Pilot/Rock Man), Christopher Stapleton (Pilot), James Yaker (Cashier), Freeman Michaels (Guard), Greg Smith (Soldier)
• Written By: Vince Gilligan & John Shiban & Frank Spotnitz
• Directed By: Kim Manners

• Tagline: THE TRUTH IS OUT THERE
• Special Guest Star: Michael McKean (Morris Fletcher)
• Guest Starring: John Mahon (General Wegman), Michael Buchman Silver (Howard Grodin), Scott Allan Campbell (Jeff Smoodge), Julia Vera (Mrs. Lana Chee), Andrew Sikking (Soldier), Chris Ufland (Sam), Tom Braidwood (Frohike), Dean Haglund (Langly), Bruce Harwood (Byers)
• And: Nora Dunn (Joanne Fletcher)
• Co-Starring: Dara Hollingsworth (Christine Fletcher), Tyler Binkley (Terry Fletcher), Mike Rad (Randy), Lisa Joann Thompson (Kelly), Christopher Stapleton (Pilot), Jeffrey T. Unterkofler (1st Air Policeman), James Yaker (Cashier), Nick Lashaway (Young Mulder), Ashlynn Rose (Young Samantha), Bonnie McNeil (Young Tena)
• Written By: Vince Gilligan & John Shiban & Frank Spotnitz
• Directed By: Michael Watkins

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Lily Tomlin (Lita), Edward Asner (Maurice)
• Written By: Chris Carter
• Directed By: Chris Carter

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: Chris Owens (Agent Jeffrey Spender)
• Guest Starring: Bruce Campbell (Wayne Weinsider), Lisa Jane Persky (Laura Weinsider), Michael Milhoan (Deputy Arky Stevens), Grace Phillips (Betsy Monroe)
• Co-Starring: Michael Rothhaar (Dr. Couvillion), Matthew Butcher (EMT), Lenora May (Ms. Britton), Jimmy Staszkiel (Mr. Ginsberg), Karen Stone (Nurse)
• Written By: David Amann
• Directed By: Rob Bowman

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Victoria Jackson (Sheila Fontaine), Clayton Rohner (Daryl Mootz), David Manis (Holman Hardt), Dirk Blocker (Mayor Jim Gilmore), Francesca Ingrassia (Cindy Culpepper)
• Co-Starring: Thom McFadden (Doctor), Dan Gifford (Local News Anchor), Sharon Madden (Hotel Manager), Brian D. Johnson (Man), Sally Stevens (Radio Singer)
• Written By: Jeffrey Bell
• Directed By: Kim Manners

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: Mitch Pileggi (Assistant Director Walter Skinner)
• Guest Starring: Raymond J. Barry (Senator Matheson), John Towey (Kenneth Orgel), Kenneth Tigar (Dr. Plant), Jenny Gago (Dr. Katrina Cabrera)
• Also Starring: Nicholas Lea (Alex Krycek)
• Co-Starring: Donna Marie Moore (ICU Nurse), Greta Fadness (OR Nurse), Dan Klass (Forensic Tech), Susana Mercedes (Driver), Tim Van Pelt (Young Surgeon), Keith Coulouris (Intern), Arlene Pileggi (Skinner's Secretary), Al Faris (Silk Shirt Man), Jonathan Fraser (Uniformed Cop), Julie Hubert (Exam Room Nurse), Mickey Knox (Trainer)
• Written By: John Shiban
• Directed By: Daniel Sackheim

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Geoffrey Lewis (Alfred Fellig), Richard Ruccolo (Agent Peyton Ritter), James Pickens, Jr. (Assistant Director Kersh)
• Co-Starring: Ange Billman (Secretary), Nicky Fane (Blue Collar Man), Naomi Matsuda (Hooker), Matt Gallini (Hood), Coby Ryan McLaughlin (Young Agent), Jolyon Reese (Second Young Agent), Javier Grajeda (Desk Sergeant), Barry Wiggins (NYPD Detective), Don Fehmel (Ambulance EMT), Dell Yount (Truck Driver)
• Written By: Vince Gilligan
• Directed By: Michael Watkins

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: William B. Davis (Cigarette Smoking Man), Chris Owens (Agent Jeffrey Frank Spender), Nicholas Lea (Alex Krycek)
• And: Mitch Pileggi (Assistant Director Walter Skinner)
• Guest Starring: Veronica Cartwright (Cassandra Anne Spender), Nick Tate (Dr. Openshaw), George Murdock (2nd Elder), Don S. Williams (1st Elder), Al Ruscio (4th Elder), Frank Ertl (5th Elder), James Newman (Lead Surgeon)
• Co-Starring: Damon P. Saleem (Pick-Up Player), Valarie Pettiford (FBI Agent)
• Uncredited: Mimi Rogers (Agent Diane Fowley)
• Written By: Chris Carter & Frank Spotnitz
• Directed By: Kim Manners

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: William B. Davis (Cigarette Smoking Man), Chris Owens (Agent Jeffrey Spender)
• And: Nicholas Lea (Alex Krycek)
• And: Mitch Pileggi (Assistant Director Walter Skinner)
• Special Guest Star: Mimi Rogers (Agent Diane Fowley)
• Guest Starring: Veronica Cartwright (Cassandra Anne Spender), Laurie Holden (Marita Covarrubias), Tom Braidwood (Frohike), Dean Haglund (Langly), Bruce Harwood (Byers), Don S. Williams (1st Elder), Al Ruscio (4th Elder), Frank Ertl (5th Elder), James Pickens, Jr. (Assistant Director Kersh), Robert Lipton (Head Surgeon)
• And: Peter Donat (Bill Mulder)
• Co-Starring: Scott Williamson (CDC Leader), Jo Black-Jacob (Nurse), Mark Bramhall (Surgical Team Member)
• Written By: Chris Carter & Frank Spotnitz
• Directed By: Rob Bowman

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Jeremy Roberts (George Vincent), Joel McKinnon Miller (Deputy Greer), Diana Maria Riva (Angela Villareal), Valente Rodriguez (Walter Suarez), Silas Weir Mitchell (Dougie), Nichole Pelerine (Sara Shipley), Max Kasch (Max Shipley)
• And: Darren McGavin (Arthur Dales)
• Co-Starring: Allen Culter (Roadblock Officer)
• Written By: David Amann
• Directed By: Rob Bowman

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: Mitch Pileggi (Assistant Director Walter Skinner)
• Guest Starring: Carrie Hamilton (Pam)
• And: Darren Burrows (Bernard)
• Co-Starring: Suanne Spoke (Woman Customer), Monique Edwards (Head Teller), Arlene Pileggi (Skinner's Secretary), Wayne Alexander (Older Agent), David Michael Mullins (Tour Guide), Mik Scriba (Lieutenant Kraskow)
• Written By: Vince Gilligan & John Shiban
• Directed By: Kim Manners

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Peter White (Gene Gogolak), Abraham Benrubi (Big Mike), Debra Christofferson (Pat Verlander), Tom Gallup (Win Shroeder), Marnie McPhail (Cami Shroeder), Roger Morrissey (Ubermenscher)
• Co-Starring: Tim Bagley (Gordy), Tom Virtue (Dave Kline), Juliana Donald (Nancy Kline), Mark Matthias (Mover)
• Written By: Daniel Arkin
• Directed By: Michael Watkins

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Melinda Culea (Karin Berquist), Thomas Duffy (Jeffrey Cahn), Michael Mantell (Dr. James Riley), David Starwalt (Frank Fiedler)
• And: Andrew J. Robinson (Dr. Ian Detweiler)
• Co-Starring: James Micheal Connor (Jake Conroy), Yau-Gene Chan (Woo), Tuan Tran (Fong), Dana Lee (Yee), Lisa Picotte (Stacey Muir), Mandy Levin (Angie), Treva Tegtmeier (Peggy), Adrienne Wilde (Nurse)
• Written By: Jeffrey Bell
• Directed By: Peter Markle

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: John Diehl (Pinker Rawls), Tuesday Knight (Jackie Gurwitch), Frank Novak (Raybert Fellowes), David Bowe (Robert Werther)
• And: Catherine Dent (June Gurwich)
• Co-Starring: Jeffrey Schoeny (Trevor), Christopher Dahlberg (State Trooper), Robert Peters (Sergeant), Jerry Giles (Security Guard), Keith Brunsmann (Bo), Lamont Johnson (Whaley), Cary Pfeffer (Anchorman), Terri Merryman (Newscaster), Lee Corbin (Guard)
• Written By: Jim Guttridge & Ken Hawryliw
• Directed By: Rob Bowman

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: John Hawkes (Phillip Padgett), Nestor Serrano (Ken Naciamento), Michael Bailey Smith (Guard), Angelo Vacco (Kevin), Jillian Bach (Maggie)
• Featuring: Casey C. O'Neill (Cemetary Grounds Keeper)
• Teleplay By: Chris Carter
• Story By: John Shiban & Frank Spotnitz
• Directed By: Kim Manners

• Tagline: IN THE BIG INNING
• Guest Starring: Jesse L. Martin (Josh Exley), Fredric Lane (Young Arthur Dales), Brian Thompson (Alien Bounty Hunter), Jesse James (Poorboy), Lou Beatty, Jr. (Black Coach), Burnell Roques (Buck Johnson)
• And: M. Emmett Walsh (Arthur Dales)
• Co-Starring: Lennie Lofton (Coranado), Paul Willson (Ted), Walter T. Phelan, Jr. (Alien), Gabriel Clifton (Black Kid), Al Kaplon (Ump), Robb Reesman (Macon Cop), Daniel Duchovny (Piney), Chris Kohn (Catcher), Ken Medlock (White Coach), Julie Griffith (Beautiful Woman), Kerric MacDonald (Moose)
• Written By: David Duchovny
• Directed By: David Duchovny

• Tagline: THE TRUTH IS OUT THERE
• Guest Starring: Signy Coleman (Susanne Modeski), Charles Rocket (Grant Ellis), John Billingsley (Timmy the Geek), Jim Fyfe (Jimmy the Geek), George Sharperson (Security Guard), Michael McKean (Morris Fletcher), Tom Braidwood (Frohike), Dean Haglund (Langly), Bruce Harwood (Byers)
• Co-Starring: Brian Reddy (Big Fritz), Phil Abrams (Little Fritz), Richard Zobel (Al), Jeff Bowser (Redhead Geek), Jason Felipe (Bald Geek), Rick Garcia (News Anchor), Kalena Coleman (Bus Driver)
• Written By: Vince Gilligan & John Shiban
• Directed By: Bryan Spicer

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: Mitch Pileggi (Assistant Director Walter Skinner)
• Guest Starring: Robyn Lively (Angela Schiff), David Denman (Wallace Schiff), Jim Beaver (Coroner), Tom Braidwood (Frohike), Dean Haglund (Langly), Bruce Harwood (Byers)
• Teleplay By: Vince Gilligan & John Shiban
• Story By: Frank Spotnitz
• Directed By: Kim Manners

• Tagline: THE TRUTH IS OUT THERE
• Also Starring: William B. Davis (Cigarette Smoking Man), Nicholas Lea (Alex Krycek)
• And: Mitch Pileggi (Assistant Director Walter Skinner)
• Special Guest Star: Mimi Rogers (Agent Diane Fowley)
• Guest Starring: Floyd "Red Crow" Westerman (Albert Hosteen), Murray Rubinstein (Dr. Sandoz), Michael Chinyamurindi (Solomon Merkmallen), Michael Ensign (Dr. Barnes)
• Co-Starring: Sheila Tousey (Native American Nurse), Warren Sweeney (Dr. Harriman), Chet Grissom (Detective), Bill Dow (Chuck Burks), Marty Zagon (Landlord), Samuel Kwaku Minta (Yelling Man), Ayo Adeyemi (African Man), Benjamin Ochieng (Second African Man)
• Written By: Chris Carter & Frank Spotnitz
• Directed By: Rob Bowman