| Agent Fox Mulder |
David Duchovny |
| Agent Dana Scully |
Gillian Anderson |
| A.D. Walter Skinner |
Mitch Pileggi |
| Cigarette-Smoking Man |
William B. Davis |
| Well-Manicured Man |
John Neville |
| First Elder |
Don S. Williams |
| Conrad Strughold |
Armin Mueller-Stahl |
| Dr. Al Kurtzweil |
Martin Landau |
| Darius Michaud |
Terry O´Quinn |
| Jana Cassidy |
Blythe Danner |
| Melvin Frohike |
Tom Braidwood |
| Ringo Langly |
Dean Haglund |
| John Byers |
Bruce Harwood |
| Stevie |
Lucas Black |
| Dr. Ben Bronshweig |
Jeffrey DeMunn |
| Barmaid |
Glenne Headly |
| FBI Witness |
Téa Leoni (Cameo) |
| Second Elder |
Stanley Walsh |
| Third Elder |
John Moore |
| Paramedic |
Hrothgar Matthews |
|