比尔·普尔曼

Bill Pullman

饰：总统托马斯·惠特莫尔 President Thomas J. Whitmore

威尔·史密斯

Willard Christopher Smith Jr

饰：队长史蒂芬'史蒂夫'希勒 Captain Steven 'Steve' Hiller

杰夫·高布伦

Jeff Goldblum

饰：大卫·莱文森 David Levinson

玛格丽特·柯林

Margaret Colin

饰：康斯坦斯·斯帕诺 Constance Spano

薇薇卡·福克斯

Vivica A. Fox

饰：茉莉 Jasmine Dubrow

兰迪·奎德

Randy Quaid

饰：罗素·凯斯 Russell Casse

罗伯特·劳吉亚

Robert Loggia

饰：威廉·格雷 General William Grey

詹姆斯·杜瓦尔

James Duval

饰：米格·凯斯 Miguel Casse

利兰·奥瑟

Leland Orser

饰：技术,医疗助理＃ 1 Tech,Medical Assistant #1

汤姆·巴瑞

Thom Barry

饰：SETI技术员＃ 2 SETI Technician #2

罗伯特·派恩

Robert Pine

饰：总参谋长格伦 Chief of Staff Glenn Parness

弗兰克·维尔克

Frank Welker

饰：Special Vocal Effects

贾德·赫希

Judd Hirsch

饰：尤利乌斯 Julius Levinson

詹姆斯·瑞布霍恩

James Rebhorn

饰：艾伯特 Albert Nimzicki

布伦特·斯皮内

Brent Spiner

饰：奥肯博士 Dr. Brackish Okun

罗斯·巴格利

Ross Bagley

饰：迪伦 Dylan Dubrow

比尔·斯米托洛维奇

Bill Smitrovich

饰：中校沃森 Lt. Colonel Watson

梅·惠特曼

Mae Whitman

饰：帕特丽夏 Patricia Whitmore

绮尔斯腾·瓦伦

Kiersten Warren

饰：蒂凡尼 Tiffany

约翰·贝内特·派瑞

Johnathan Bennett Perry

饰：Secret Service Agent

蒂姆·科勒赫

Tim Kelleher

饰：Technician

迈克尔·温瑟

Michael Winther

饰：Co-Worker #3

约翰·卡波迪斯

John Capodice

饰：Mario

格雷格·科林斯

GregCollins

饰：Military Aide

马克·菲特

Mark Fite

饰：Pilot

列万·乌恰涅伊什维利

Леван Учанейшвили

饰：Russian Pilot (as Levani)

克里斯托弗·康纳德

Kristof Konrad

饰：Russian Pilot

兰迪·奥格斯比

Randy Oglesby

饰：Mike Dodge

巴里·德尔·舍曼

Barry Del Sherman

饰：Street Preacher

莎伦泰

Sharon Tay

饰：Reporter

Wendy L. Walsh

饰：Herself

凯文·库尼

Kevin Cooney

饰：Atlantic Air CINC

兰斯·霍华德

Rance Howard

饰：Chaplain

Sayed Badreya

Sayed Badreya

饰：Arab Pilot

Adam Tomei

饰：Sailor

金伯莉·贝克

Kimberly Beck

饰：Housewife

托马斯·F·达菲

Thomas F. Duffy

饰：Lieutenant

吉姆·皮多克

Jim Piddock

饰：Reginald

Frederic W. Barnes

饰：Himself (as Fred Barnes)

Eleanor Clift

饰：Herself

Morton Kondracke

饰：Himself

约翰·麦克劳克林

John McLaughlin

饰：Himself

亚当·鲍德温

Adam Baldwin

饰：Major Mitchell

杰赛普·安德鲁斯

Giuseppe Andrews

饰：Troy Casse

小哈利·康尼克

Harry Connick.Jr.

饰：Captain Jimmy Wilder

小理察·斯贝特

Richard Speight Jr.

饰：Ed

安德鲁·凯加

Andrew Keegan

饰：Older Boy

玛丽·麦克唐纳

Mary McDonnell

饰：First Lady Marilyn Whitmore

哈维·费斯特恩

Harvey Fierstein

饰：Marty Gilbert

莉萨·雅克布

Lisa Jakub

饰：Alicia Casse

弗兰克·诺瓦克

Frank Novak

饰：Teddy

德文·古梅尔萨尔

Devon Gummersall

饰：Philip

米伦·E·威利斯

Mirron E. Willis

饰：Aide

Ross Lacy

饰：Aide

大卫·普雷斯曼

David Pressman

饰：Alex, Aide to President Whitmore

Vivian Palermo

饰：Tech,Medical Assistant #2

拉法埃尔·沙巴拉格

Raphael Sbarge

饰：Commander,Tech

鲍比·霍希

Bobby Hosea

饰：Major Danowitz

丹·劳里亚

Dan Lauria

饰：Commanding Officer

Steve Giannelli

饰：Radar Tech

Eric Paskel

Eric Paskel

饰：Radar Tech

卡洛斯·拉卡马拉

Carlos Lacamara

饰：Radar Operator (as Carlos LaCamara)

Troy Willis

饰：Secret Service Agent

维恩·维尔德森

Wayne Wilderson

饰：Area 51 Technician

杰·阿克沃内

Jay Acovone

饰：Area 51 Guard

James Wong

饰：SETI Technician #1

珍娜·马瑞·霍普

Jana Marie Hupp

饰：SETI Technician #3

Matt Pashkow

饰：Officer #2

Marisa Johnston

饰：Co-Worker #2 (as Marisa Morell)

Dexter Warren

饰：Co-Worker #4

Paul LeClair

饰：Co-Worker #5

Michael Vacca

饰：Lieutenant Peterson (as Capt. Michael 'Chewy' Vacca)

David Chanel

饰：Secret Service Agent

Derek Webster

Derek Webster

饰：Sky Crane Pilot

Eric Neal Newman

饰：Pilot

凯文·西富恩特斯

Kevin Sifuentes

饰：Tank Commander

Elston Ridgle

饰：Soldier

杰克·穆尔

Jack Moore

饰：Stoney Jackson

莱曼·华德

Lyman Ward

饰：Secret Service Agent

Anthony Crivello

饰：Lincoln

Barbara Beck

饰：Monica Soloway

Joe Fowler

饰：Reporter

Andrew Warne

饰：Reporter

皮特·J.卢卡斯

Peter J. Lucas

饰：Russian Reporter (as Peter Jozef Lucas)

Yelena Danova

饰：Russian Newscaster

Johnny Kim

饰：Korean Newscaster (as Derek Kim)

Vanessa J. Wells

饰：Newscaster

Jessika Cardinahl

饰：German Video Newscaster (scenes deleted)

Gary W. Cruz

饰：Video Newscaster

Ron Pitts

饰：Video Newscaster

Christine Devine

饰：Video Newscaster

Ernie Anastos

饰：Rex Black, New York Newscaster

Nelson Mashita

Nelson Mashita

饰：Japanese Tech

Jeff Phillips

饰：B-2 Pilot

John Bradley

John Bradley

饰：Lucas

Jon Shear

Jon Shear

饰：Thomson (as Jon Matthews)

Jerry Dunphy

饰：Himself

杰克·杰伦德

Jack Germond

饰：Himself

巴里·诺兰

Barry Nolan

饰：Himself

George Putnam

饰：Himself

埃里克·迈克尔·徐

Eric Michael Zee

饰：Northridge Field Reporter

Carlos Lara

饰：Farmer Kid

Mike Monteleone

饰：Butler

Lee Strauss

饰：Elvis Fanatic

Lisa Star

饰：Woman on Roof

Malcolm Danare

Malcolm Danare

饰：Intellectual on Roof

Arthur Brooks

饰：Trucker on Roof

Michael Moertl

饰：Thief (as Michael G. Moertl)

James J. Joyce

饰：Master CPO

Joyce Cohen

饰：Kim Peters

Julie Moran

饰：Herself - 'Entertainment Tonight' Reporter

Richard Pachorek

饰：LAPD Helicopter Pilot

迪安·德夫林

Dean Devlin

饰：Eagle 2 Pilot (uncredited)

福尔克·恩格尔

Volker Engel

饰：Man in Office (uncredited)

Jeffrey Gold

饰：German Fighter Pilot (uncredited)

Lincoln D. Hiatt

饰：Colin Barclay (uncredited)

Jonathan Khan

饰：Pilot (uncredited)

Bryan D. Moss

饰：Israeli Fighter Pilot (uncredited)

Roy Newton

饰：Pilot (uncredited)

Gary Pike

Gary Pike

饰：Helicopter Passenger (uncredited)

Bonnie Silco

饰：Bride (uncredited)

Tadao Tomomatsu

饰：Big Hat Guy on Tower (uncredited)

Michael A. Valenzano

饰：Young Pilot (uncredited)

Daren Dochterman

饰：British News Translator (uncredited)

Darla Rae

饰：Protestor - Omni Hotel (uncredited)

詹姆斯·维斯

James With

饰：British Pilot (uncredited)

Greg Bronson

Greg Bronson

饰：Police Officer at White House (uncredited)

Michael Haddad

饰：Trailer Trash (uncredited)

Darin Mangan

饰：Staff sergeant (uncredited)

Mark Thompson

饰：Video Newscaster

帕特·斯基珀

Pat Skipper

饰：Redneck

Robin Groth

饰：Flagstaff News Anchor

加里·A·赫克

Gary A. Hecker

饰：Alien Vocal Effects (as Gary Hecker)

Jonathan Adler

饰：Secret Service Agent (uncredited)

艾瑞克·阿瓦利

Erick Avari

饰：SETI Chief (uncredited)

Bob Friend

饰：Himself - 'Sky News' Anchorman (uncredited)

Scott McKinley

饰：Joint Chiefs of Staff (uncredited)

奈塔 罗斯

Nectar Rose

饰：Stripper (uncredited)

特雷西·沃特

Tracey Walter

饰：Area 51 Lab Technician (uncredited)

约翰·斯托里

John Storey

德里克·韦伯斯特

Derek Webster

卡德罗莎·奥娜·卡罗尔

Kadrolsha Ona Carole

乔恩·马修斯

Jon Matthews

加里·A·赫克

Gary A. Hecker

饰：演员 Actor/Actress

列万·乌恰尼什维利

Levan Uchaneishvili

饰：Russian Pilot