President Thomas J. Whitmore
Bill Pullman
First Lady Marilyn Whitmore
Mary McDonnell
David Levinson
Jeff Goldblum
Julius Levinson
Judd Hirsch
Constance Spano
Margaret Colin
Capt. Steven 'Steve' Hiller
Will Smith
Jasmine Dubrow
Vivica A. Fox
Russell Casse
Randy Quaid
Gen. William M. Grey
Robert Loggia
Albert Nimziki
James Rebhorn
Marty Gilbert
Harvey Fierstein
Maj. Mitchell
Adam Baldwin
Dr. Brackish Okun
Brent Spiner
Patricia Whitmore
Mae Whitman
Captain Watson
Bill Smitrovich
Capt. Jimmy Wilder
Harry Connick Jr.
Techy / Med Asst #1
Leland Orser
Whitmore's Aide
David Pressman
Techy / Med Asst
Vivian Palermo
Commander / Tech
Raphael Sbarge
Commanding Officer
Bobby Hosea
Commanding Officer
Dan Lauria
Radar Tech
Steve Giannelli
Radar Operator (as Carlos LaCamara)
Carlos Lacamara
Secret Serviceman
John Bennett Perry
Secret Serviceman
Troy Willis
Area 51 Technician
Wayne Wilderson
Area 51 Guard
Jay Acovone
SETI Tech Three
Jana Marie Hupp
Second Officer
Matt Pashkow
Chief of Staff
Robert Pine
Co-Worker #2 (as Marisa Morell)
Marisa Johnston
Co-Worker #3
Michael Winther
Co-Worker #4
Dexter Warren
Co-Worker #5
Paul LeClair
Lt. Peterson (as Capt. Michael 'Chewy' Vacca)
Michael Vacca
Secret Service Agent (as David Chanel)
David Channell
Military Aide
Greg Collins
Sky Crane Pilot
Derek Webster
Russian Pilot
Kristof Konrad
Tank Commander
Kevin Sifuentes
Street Preacher
Barry Del Sherman
Secret Service Guy
Lyman Ward
Monica Soloway
Barbara Beck
Russian Reporter (as Peter Jozef Lucas)
Peter J. Lucas
Russian Newscaster
Yelena Danova
Korean Newscaster (as Derek Kim)
Johnny Kim
Newscaster
Vanessa J. Wells
German Video Newscaster (scenes deleted)
Jessika Cardinahl
Video Newscaster
Gary W. Cruz
Video Newscaster
Ron Pitts
Video Newscaster
Wendy L. Walsh
Video Newscaster
Christine Devine
Video Newscaster
Mark Thompson
Rex Black / NY Newscaster
Ernie Anastos
Atlantic Air CINC
Kevin Cooney
Japanese Tech
Nelson Mashita
Lieutenant
Thomas F. Duffy
Thomson (as Jon Matthews)
Jon Shear
Himself (as Fred Barnes)
Frederic W. Barnes
Northridge Field Reporter
Eric Michael Zee
Elvis Fanatic
Lee Strauss
Intellectual on Roof
Malcolm Danare
Trucker on Roof
Arthur Brooks
Thief (as Michael G. Moertl)
Michael Moertl
Master CPO
James J. Joyce
Kim Peters (Reporter)
Joyce Cohen
Entertainment Tonight Reporter
Julie Moran
Flagstaff News Anchor
Robin Groth
LAPD Helicopter Pilot
Richard Pachorek
Alien Vocal Effects
Gary A. Hecker
Special Vocal Effects (voice)
Frank Welker
