Characters played by David Duchovny
Special Agent Fox Mulder
Characters played by Jordan Lee Williams
Craig Willmore
Characters played by Gillian Anderson
Special Agent Dana Scully
Characters played by Mitch Pileggi
Assistant Director Walter Skinner
Characters played by Paige Witte
Mary Astadourian
Characters played by James Lynch
Mark Cook
Characters played by Sean G. Griffin
FBI Agent Armistead Shanks (as Sean Griffin)
Characters played by Tom Braidwood
Melvin Frohike
Characters played by Bruce Harwood
John Fitzgerald Byers
Characters played by Dean Haglund
Richard 'Ringo' Langly
Characters played by Robert Isaac Lee
James Wong
Characters played by Suzanne McGaffery
Mother
Characters played by Zoe Warner
Child
Characters played by Lisa Estridge Gray
Motel Clerk
Characters played by Nick Eldredge
NSA #1
Characters played by Richard W. Daley
NSA #2
Characters played by Reginald A. Jackson
John Amis
Characters played by Brendan Beiser
Sean Pendrell
Characters played by Nick Granado
Mendoza
Characters played by Chuck McQuary
Stearns
Characters played by Mark Farrell
Arley
Characters played by John Gilbert
Harbor Master
Characters played by Lauren Tewes
Joan Truitt
Characters played by Eli Lockwood
Crew-cut Man
Characters played by Randy Hoffmeyer
Rauch, M.D.
Characters played by William B. Davis
Cigarette Smoking Man CGB Spender
Characters played by Ted D'Arms
Smolnikoff
Characters played by Steven Williams
X Mr. X
Characters played by Jimmi Parker
McIntyre
Characters played by Clifford Fetters
Homeless Man (as Clifford Paul Fetters)
Characters played by Wally Dalton
Wallace
Characters played by Harris Smith
Key Guard
Characters played by Brad Curtis
NSA Man
Characters played by Steve Keller
NSA Man
Characters played by Brian Kilcup
NSA Man
Characters played by Whitey Shapiro
NSA Man
Characters played by Joe Williams Jr.
NSA Man
Characters played by Laurel McConnel
Pretty Woman
Characters played by Alvin Castle
Air Base Guards
Characters played by David Austin
Air Base Guards
Characters played by Raymond J. Reehill
Air Base Guards
Characters played by Robert R. Ryel
Narrator (uncredited)