Will Smith Capt. Steven Hiller
Jeff Goldblum David Levinson
Mary McDonnell Marilyn Whitmore
Mae Whitman Patricia Whitmore
Bill Pullman President Thomas J. Whitmore
James Duval Miguel
Frank Welker Special Vocal Effects (voice)
Vivica A. Fox Jasmine Dubrow
Randy Quaid Russell Casse
Adam Baldwin Major Mitchell
Margaret Colin Constance Spano
Harry Connick Jr. Capt. Jimmy Wilder
James Rebhorn Albert Nimzicki
Robert Loggia General William Grey
Roland Emmerich Director, Executive Producer, Screenplay
Judd Hirsch Julius Levinson
Brent Spiner Dr. Brackish Okun
Dan Lauria Commanding Officer
Thom Barry SETI Tech Two
Rance Howard Chaplain
Robert Pine Chief of Staff
Kiersten Warren Tiffany
Jay Acovone Area 51 Guard
Harvey Fierstein Marty Gilbert
Thomas F. Duffy Lieutenant
Kimberly Beck Housewife
Bill Smitrovich Captain Watson
Gary A. Hecker Alien Vocal Effects (voice)
Leland Orser Techy / Med Asst #1
Giuseppe Andrews Troy
Randy Oglesby Mechanic
Raphael Sbarge Commander / Tech
Tim Kelleher Technician
Sayed Badreya Arab Pilot
Derek Webster Sky Crane Pilot
Ross Bagley Dylan
John Bennett Perry Secret Serviceman
Wayne Wilderson Area 51 Technician
Dean Devlin Second Unit Director, Screenplay, Producer
Lisa Jakub Alicia
Devon Gummersall Philip
Levan Uchaneishvili Russian Pilot
Dan Bradley Stunts, Stunt Coordinator
Jim Piddock Reginald
Richard Speight Jr. Ed
Pat Skipper Redneck
Jimmy N. Roberts Stunts
Tom Morga Stunts
Barry Del Sherman Street Preacher
Gene LeBell Stunts
Hilda Hodges Foley
Debbie Evans Stunt Driver
Kevin Cooney Atlantic Air CINC
Chris Howell Stunts
Andrew Keegan Older Boy
Greg Collins Military Aide
David Pressman Whitmore's Aide
Adam Tomei Sailor
Anthony Crivello Lincoln
John Roesch Foley
Ute Emmerich Executive Producer
Darrin Prescott Stunts
John Capodice Mario
Gilbert B. Combs Stunts
Andy Gill Stunts
Keith Woulard Stunts
Carlos Lacámara Radar Operator
Malcolm Danare Intellectual on Roof
Kristof Konrad Russian Pilot
Jana Marie Hupp SETI Tech Three
Bill W. Benton Sound Re-Recording Mixer
Lyman Ward Secret Service Guy