大卫·杜楚尼

David Duchovny

饰：福克斯·穆德 Special Agent Fox Mulder

吉莲·安德森

Gillian Leigh Anderson

饰：丹娜·斯克莉 Special Agent Dana Scully

马丁·兰道

Martin Landau

饰：Alvin Kurtzweil, MD

布莱思·丹纳

Blythe Danner

饰：Jana Cassidy

特里·奥奎因

Terry O'Quinn

饰：Darius Michaud

阿明·缪勒-斯塔尔

Armin Mueller-Stahl

饰：Conrad Strughold

卢卡斯·布莱克

Lucas Black

饰：Stevie

布鲁斯·哈伍德

Bruce Harwood

饰：John Fitzgerald Byers

杰森·贝吉

Jason Beghe

饰：FBI Man at Bomb Site (uncredited)

约翰·内威尔

John Neville

饰：The Well-Manicured Man

威廉·B·戴维斯

William B. Davis

饰：Cigarette Smoking Man,CGB Spender

米彻·佩勒吉

Mitch Pileggi

饰：Assistant Director Walter Skinner

杰弗里·德曼

Jeffrey DeMunn

饰：Ben Bronschweig, M.D. (as Jeffrey De Munn)

Christopher Fennell

饰：Boy #2 (as Chris Fennell)

Cody Newton

饰：Boy #3

Blake Stokes

饰：Boy #4

迪恩·哈格鲁德

Dean Haglund

饰：Richard 'Ringo' Langly

汤姆·布莱德伍德

Tom Braidwood

饰：Melvin Frohike

乔治·穆德克

George Murdock

饰：Second Elder

Craig Davis

Craig Davis

饰：Primitive #1

Carrick O'Quinn

Carrick O'Quinn

饰：Primitive #2

汤姆·伍德鲁夫

Tom Woodruff Jr.

饰：Creature #1

史蒂夫·兰金

Steve Rankin

饰：Field Agent

加里·格鲁布斯

Gary Grubbs

饰：Fire Captain Miles Cooles

Glendon Rich

饰：Police Investigator

Paul Tuerpe

Paul Tuerpe

饰：Paramedic #1 (as Paul Tuerpé)

迈克尔·克拉维克

Michael Krawic

饰：Paramedic #2 (as Michael A. Krawic)

兰迪·霍尔

Randy Hall

饰：Windbreakered Agent

格伦妮·海德利

Glenne Headly

饰：Barmaid (uncredited)

迈克尔·肖姆斯·维尔斯

Michael Shamus Wiles

饰：Black-Haired Man

Greg Ballora

饰：Creature #2 (as Gregory B. Ballora)

泰德·金

Ted King

饰：FBI Agent on Roof (as T.W. King)

Luis Beckford

饰：FBI Agent

Steven M. Gagnon

Steven M. Gagnon

饰：Last Agent Out

拉里·约书亚

Larry Joshua

饰：D.C. Cop #1 (as Lawrence Joshua)

Gunther Jenson

饰：Security Guard (as Gunther Jensen)

斯科特·阿兰·史密斯

Scott Alan Smith

饰：Technician (as Scott Smith)

Ian Ruskin

Ian Ruskin

饰：Well-Manicured Man's Valet

Paul Welterlen

饰：Control Room Operator

Joel Traywick

饰：Young Naval Guard

弥尔顿·约翰斯

Milton Johns

饰：British Valet

拉里·里彭克勒杰

Larry Rippenkroeger

饰：Towncar Driver

乔什·麦克拉伦

Josh McLaglen

饰：Buzz Mihoe

T.C. Badalato

饰：Fireman

Amine Zary

饰：Tunisian

David Paris

饰：Pilot (as David W. Paris)

Vanessa Morley

饰：Young Samantha Mulder (uncredited)

Mitch Toles

饰：Security Guard #2 (uncredited)

Marcus Turner

Marcus Turner

饰：Young Fox Mulder (uncredited)

Don S. Williams

饰：First Elder

Fuad C'Amanero

饰：FBI Agent (uncredited)

Ken Costanza

饰：Alien (uncredited)

托宾·贝尔

Tobin Bell

户田惠子

KEIKO TODA

特瑞·欧奎恩

Terrance Quinn

饰：Darius Michaud