David Duchovny
Fox Mulder (20 eps)
Gillian Anderson
Dana Scully (20 eps)
Tom Braidwood
Melvin Frohike (6 eps)
Don S. Williams
Elder (5 eps)
Bruce Harwood
John Fitzgerald Byers (5 eps)
Dean Haglund
Richard 'Ringo' Langly (5 eps)
Chris Owens
Mutato (4 eps)
Pat Skipper
Bill Scully Jr. (3 eps)
Lauren Diewold
Emily Sim (3 eps)
John Neville
Well-Manicured Man (3 eps)
Sheila Larken
Margaret Scully (3 eps)
John Moore
2nd Elder (3 eps)
Nicholas Lea
Alex Krycek (3 eps)
John Pyper-Ferguson
Det. John Kresge (2 eps)
John Finn
Michael Kritschgau (2 eps)
Veronica Cartwright
Cassandra Spender (2 eps)
Brian Thompson
Alien Bounty Hunter (2 eps)
George Murdock
Elder #2 (2 eps)
Stephen Mendel
Dark Suited Man #2 (2 eps)
Laurie Holden
Marita Covarrubias (2 eps)
Alex Shostak, Jr.
Dmitri (2 eps)
Ken Camroux-Taylor
Senior Agent (2 eps)
Ralph Alderman
Manager (2 eps)
Arnie Walters
Father McCue (2 eps)
Patricia Dahlquist
Susan Chambliss (2 eps)
Stuart O'Connell
1st SWAT Cop (2 eps)
Charles Cioffi
Section Chief Scott Blevins (2 eps)
Karri Turner
Tara Scully (2 eps)
Jim Jansen
Dr. Heitz Werber (2 eps)
Luke Wilson
Sheriff Hartwell (1 eps)
John O'Hurley
Dr. Pollidori (1 eps)
Lili Taylor
Marty Glenn (1 eps)
Diana Scarwid
Linda Bowman (1 eps)
Michael MacRae
August Bremer (1 eps)
Kristin Lehman
Esther Nairn / Invisigoth (1 eps)
Richard Belzer
John Munch (1 eps)
Anthony Rapp
Jeff Glaser (1 eps)
Ted Cole
2nd Paramedic (1 eps)
Myles Ferguson
Joey Agostino (1 eps)
Brent Butt
Coroner (1 eps)
Daniel von Bargen
Jacob Steven Haley (1 eps)
Signy Coleman
Susanne Modeski (1 eps)
Eric Keenleyside
Lance Kernof (1 eps)
Carolyn Tweedle
Jane Froelich (1 eps)
Colleen Flynn
Michele Fazekas (1 eps)
C. Ernst Harth
Huge Man (1 eps)
Katharine Isabelle
Lisa Baiocchi (1 eps)
Patti Allan
Mrs. Kernoff (1 eps)
Patrick Renna
Ronnie Strickland (1 eps)
Henry Beckman
Old Man (1 eps)
Megan Leitch
Samantha Mulder (1 eps)
George Josef
Orchard Keeper (1 eps)
Susannah Hoffmann
Melissa Turner (1 eps)
Darren McGavin
Agent Arthur Dales (1 eps)
Scott Burkholder
Agent Kinsley (1 eps)
Henry Watson
Blue-Collar Guy (uncredited) (1 eps)
Jody Racicot
Father Gregory (1 eps)
Sam Anderson
Leamus (1 eps)
Mimi Rogers
Agent Diana Fowley (1 eps)
Blu Mankuma
Det. Pennock (1 eps)
Brian Leckner
Hayes Michel (1 eps)
Richard Fitzpatrick
Charles Wesley Gotts (1 eps)
Pattie Tierce
Shaineh Berkowitz (1 eps)
Emily Perkins
Dara Kernoff / Paula Koklos / Roberta Dyer (1 eps)
Chad Lindberg
Bobby Rich (1 eps)
Garret Dillahunt
Edward Skur (1 eps)
Colleen Winton
Therapist (1 eps)
Armin Moattar
Goatee Man (1 eps)
Stewart Gale
Izzy Berkowitz (1 eps)
Henri Lubatti
Dr. Wilkenson (1 eps)
Lorraine Landry
Pathologist Vicki Belon (1 eps)
Simon Longmore
Marty Fox (1 eps)
Marion Killinger
Detective (uncredited) (1 eps)
Forbes Angus
Funeral Director (1 eps)
Glenn Morshower
Aaron Starkey (1 eps)
Peter Williams
Jackson (1 eps)
Fredric Lehne
Young Arthur Dales (1 eps)
Scott Oughterson
Old Orderly (1 eps)
Kate Braidwood
Usherette (1 eps)
Cynthia Preston
Nancy Aaronson (1 eps)
Chris Giacoletti
Booger (1 eps)
Eric Knight
The Hacker Dude (uncredited) (1 eps)
Rob Daprocida
Bunny (1 eps)
Cynde Harmon
Patti Rich (1 eps)
John Apicella
Greg Pincus (1 eps)
Birkett Turton
Brit (uncredited) (1 eps)
Kurt Evans
Sports Store Employee (1 eps)
Donna Yamamoto
Female Agent (1 eps)
Joe Pascual
Examiner (1 eps)
J.C. Wendel
Agent Stonecypher (1 eps)
Steve Makaj
Scott Ostelhof (1 eps)
Trevor Roald
Martin (uncredited) (1 eps)
David Moreland
Roy Cohn (1 eps)
Bob Dawson
Phil Rich (1 eps)
Ron Halder
Dr. Floyd Fazio (1 eps)
Kenneth H. Hawryliw
Ken Hawryliw (1 eps)
Dean Wray
Rich Turner (1 eps)
Grant Gladish
Cameraman (1 eps)
Gerard Plunkett
Dr. Calderon (1 eps)
Douglas Arthurs
Skin-Head Man (1 eps)
Tim O'Halloran
The Sergeant (uncredited) (1 eps)
Jane Perry
Dorothy Bahnsen (1 eps)
Barry W. Levy
Dr. Vitagliano (1 eps)
Chris Nelson Norris
Swat Lieutenant (1 eps)
Daniel Weber
Figgis (uncredited) (1 eps)
Jeff Gulka
Gibson Andrew Praise (1 eps)
Brent Sheppard
Doctor (1 eps)
Kate Luyben
Nurse Nancy (1 eps)
Kurt Max Runte
Ranger (1 eps)
Gardiner Millar
Mr. Baiocchi (1 eps)
Martin Ferrero
Shooter (1 eps)
Tracy Elofson
Four-Faced Man (1 eps)
Michelle Hart
Trace Agent (1 eps)
Eric W. Gilder
Old Edward Skur (1 eps)
Elizabeth McCarthy
Shopper (1 eps)
John B. Lowe
Dr. Leavitt (1 eps)
Sean Benbow
Customer (1 eps)
Raoul Ganeen
Guard (1 eps)
Christine Anton
Teacher (1 eps)
Glenn Williams
Officer (1 eps)
Steven Griffith
Paramedic (1 eps)
Dean Aylesworth
Young Bill Mulder (1 eps)
Norma Jean Wick
Newscaster (1 eps)
Chapelle Jaffe
Dr. Patou (1 eps)
Julie Arkos
Holly (1 eps)
Dean Barrett
Cohn's Assistant (uncredited) (1 eps)
Tracy Lively
Clerk (1 eps)
Owen Walstrom
Mark Backus (uncredited) (1 eps)
Anatol Rezmeritsa
Commandant (1 eps)
Cory Dagg
Bartender (1 eps)
Tanya Huse
Medical Technician (1 eps)
Barbara Dyke
Dr. Alepin (1 eps)
Max Wyman
Dr. Per Lagerqvist (1 eps)
Klodyne Rodney
Medic (1 eps)
Willy Ross
Quiet Willy (uncredited) (1 eps)
Derek Thomas Versteeg
M.P. (1 eps)
Jack Finn
Young Boy (1 eps)
Patrick Keating
Donald Gelman (1 eps)
William MacDonald
Deputy Buddy Riggs (1 eps)
J. Douglas Stewart
Landlord (1 eps)
Dan Shea
Deputy (uncredited) (1 eps)
David Abbott
Judge Maibaum (1 eps)
Tyler Thompson
Louis Asekoff (1 eps)
Tracey Bell
Cher (1 eps)
Colin Lawrence
First Cop (1 eps)
Vitaly Kravchenko
J.J. (uncredited) (1 eps)
Miriam Smith
Elizabeth Pollidori (1 eps)
Dalias Blake
Second Cop (1 eps)
Jerry Springer
Jerry Springer (1 eps)
Kate Robbins
Lisa's Aunt (1 eps)
Lloyd Berry
Old Man Pollidori (1 eps)
Xantha Radley
Waitress (1 eps)
Jonathan Palis
Postal Worker (uncredited) (1 eps)
Nancy Kerr
Nurse (1 eps)
Ty Olsson
Young Orderly (1 eps)
Leslie Jones
Gretchen Starns (1 eps)
Michal Suchánek
Young Jeffrey Spender (1 eps)
Melinda McGraw
Melissa Scully (1 eps)
Erin Fitzgerald
Waitress (uncredited) (1 eps)
Merrilyn Gann
Mrs. Asekoff (1 eps)
Alf Humphreys
Michael Asekoff (1 eps)
Tom Scholte
Michael Sloan (1 eps)
Sheila Paterson
Anna Fugazzi (1 eps)
Bob Morrisey
Dr. Vinet (1 eps)
Eric Breker
Dark Suited Man #1 (1 eps)
Michael Dobson
U.S. Marshal (1 eps)
Sarah-Jane Redmond
Karin Matthews (1 eps)
Laurie Murdoch
Coroner (1 eps)
Jenny-Lynn Hutcheson
Polly Turner (1 eps)
Larry Musser
Jack Bonsaint (1 eps)
Gordon Tipple
Assistant Manager (1 eps)
Ian Robison
Ranger (1 eps)
Harrison Coe
Dave the Butcher (1 eps)
Jerry Schram
Boyce (1 eps)
Jenn Forgie
Nurse (1 eps)
Mitchell Kosterman
Sheriff (1 eps)
David Fredericks
The Director (1 eps)
Roger Haskett
Coroner (1 eps)
Eileen Pedde
Mrs. Skur (1 eps)
Peter Kelamis
Assistant D.A. Daniel Costa (1 eps)
Bob Wilde
George Vincent Dyer (uncredited) (1 eps)
J. B. Bivens
Field Agent (1 eps)
Michael St. John Smith
The CIA Operative (uncredited) (1 eps)
Roger Cross
Agent Rice (1 eps)
Brian Markinson
Gary Lambert (1 eps)
Dmitry Chepovetsky
Supervisor (1 eps)
Steve Bacic
SWAT Commander (1 eps)
Brenda McDonald
Mrs. Loach (1 eps)
Steven Williams
Mr. X (1 eps)
Robert Wisden
Robert Patrick Modell (1 eps)
Rob Freeman
Marshall Sim (1 eps)