Captain Steven 'Eagle' Hiller

Will Smith

President Thomas J. Whitmore

Bill Pullman

David Levinson

Jeff Goldblum

First Lady Marilyn Whitmore

Mary McDonnell

Julius Levinson

Judd Hirsch

Constance Spano/Levinson

Margaret Colin

Russell Casse

Randy Quaid

U.S. Space Command General William Grey

Robert Loggia

Secretary of Defense Albert Nimzicki

James Rebhorn

Marty Gilbert

Harvey Fierstein

Major Mitchell

Adam Baldwin

Dr. Brackish Okun

Brent Spiner

Miguel Casse

James Duval

Jasmine Dubrow

Vivica A. Fox

Alicia Casse

Lisa Jakub

Dylan Dubrow

Ross Bagley

First Daughter Patricia Whitmore

Mae Whitman

Captain Watson

Bill Smitrovich

Tiffany

Kiersten Warren

Captain Jimmy 'Raven' Wilder

Harry Connick Jr.

Video Newscaster

Christine Devine

Troy

Giuseppe Andrews

Dr. Isaacs

John Storey

Teddy

Frank Novak

Philip

Devon Gummersall

Tech/Med. Asst. No. 1

Leland Orser

Aide

Mirron E. Willis

Aide

Ross Lacy

Whitmore's Aide

David Pressman

Tech/Med. Asst. No. 2

Vivian Palermo

Commander / Tech

Raphael Sbarge

Commanding Officer

Bobby Hosea

Commanding Officer

Dan Lauria

Radar Tech

Steve Giannell

Radar Tech

Eric Paskel

Radar Tech

Steve Giannelli

Radar Operator

Carlos LaCamara

Secret Serviceman

John Bennett Perry

Secret Serviceman

Troy Willis

Technician

Tim Kelleher

Area 51 Technician

Wayne Wilderson

Area 51 Guard

Jay Acovone

SETI Tech One

James Wong

SETI Tech Two

Thom Barry

SETI Tech Three

Jana Marie Hupp

Second Officer

Matt Pashkow

Chief of Staff

Robert Pine

Co-Worker No. 2

Marisa Morell

Co-Worker No. 3

Michael Winther

Co-Worker #2

Marisa Johnston

Co-Worker No. 4

Dexter Warren

Co-Worker No. 5

Paul LeClair

Co-Worker #4

Warren Dexter Beatty

Lt. Peterson

Capt. Michael 'Chewy' Vacca

Secret Service Agent

David Chanel

Lt. Peterson

Michael Vacca

Mario

John Capodice

Secret Service Agent

David Channell

Military Aide

Greg Collins

Sky Crane Pilot

Derek Webster

Pilot

Mark Fite

Pilot

Eric Neal Newman

Russian Pilot

Levani

Russian Pilot

Kristof Konrad

Tank Commander

Kevin Sifuentes

Soldier

Elston Ridgle

Mechanic

Randy Oglesby

Mechanic

Jack Moore

Street Preacher

Barry Del Sherman

Secret Service Guy

Lyman Ward

Lincoln

Anthony Crivello

Ed

Richard Speight Jr.

Monica Soloway

Barbara Beck

Reporter

Joe Fowler

Reporter

Andrew Warne

Reporter

Andrew Warner

Reporter

Sharon Tay

Russian Reporter

Peter Jozef Lucas

Russian Newscaster

Yelena Danova

Korean Newscaster

Derek Kim

Korean Newscaster

Johnny Kim

Newscaster

Vanessa J. Wells

German Video Newscaster

Jessika Cardinahl

Video Newscaster

Gary W. Cruz

Video Newscaster

Ron Pitts

Video Newscaster

Wendy Walsh

Video Newscaster

Wendy L. Walsh

Video Newscaster

Mark Thompson

Video Newscaster

Jack Germond

Rex Black / NY Newscaster

Ernie Anastos

Video Newscaster

Morton Kondracke

Atlantic Air CINC

Kevin Cooney

Chaplain

Rance Howard

Atlantic Air

Cinckevin Cooney

Japanese Tech

Nelson Mashita

B-2 Pilot

Jeff Phillips

Arab Pilot

Sayed Badreya

Sailor

Adam Tomei

Lucas

John Bradley

Housewife

Kimberly Beck

Lieutenant

Thomas F. Duffy

Older Boy

Andrew Keegan

Thomson

Jon Matthews

Reginald

Jim Piddock

Self

Frederic W. Barnes

Herself

Eleanor Clift

Himself

Jerry Dunphy

Himself

John McLaughlin

Himself

Barry Nolan

Himself

George Putnam

Northridge Field Reporter

Eric Michael Zee

Redneck

Pat Skipper

Woman on Roof

Lisa Star

Farmer Kid

Carlos Lara

Intellectual on Roof

Malcolm Danare

Flagstaff News Anchor

Robin Groth

Butler

Mike Monteleone

Elvis Fanatic

Lee Strauss

LAPD Helicopter Pilot

Richard Pachorek

Special Vocal Effects (voice)

Frank Welker

Trucker on Roof

Arthur Brooks

Himself

Fred Barnes

Thief

Michael Moertl

Master C. P. O.

James J. Joyce

Kim Peters (Reporter)

Joyce Cohen

Entertainment Tonight Reporter

Julie Moran

Boomer

Deenie Dakota

Boomer

Dakota

Alien Vocal Effects (voice)

Gary A. Hecker

Thomson

Jon Mathews

Thief

Michael G. Moertl