David Duchovny

Agent Fox Mulder

Gillian Anderson

Agent Dana Scully

Mitch Pileggi

Assistant Director Walter Skinner

William B. Davis

The Cigarette-Smoking Man

John Neville

The Well-Manicured Man

Martin Landau

Kurtzweil

Jeffrey DeMunn

Bronschweig

Tom Braidwood

Frohike

Blythe Danner

Cassidy

Terry O'Quinn

Michaud

Dean Haglund

Langly

Bruce Harwood

Byers