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
Judd Hirsch Julius Levinson
Roland Emmerich Director, Executive Producer, Screenplay
Dan Lauria Commanding Officer
Kiersten Warren Tiffany
Brent Spiner Dr. Brackish Okun
Thom Barry SETI Tech Two
Rance Howard Chaplain
Robert Pine Chief of Staff
Thomas F. Duffy Lieutenant
Harvey Fierstein Marty Gilbert
Bill Smitrovich Captain Watson
Kimberly Beck Housewife
Gary A. Hecker Alien Vocal Effects (voice)
Leland Orser Techy / Med Asst #1
Jay Acovone Area 51 Guard
Giuseppe Andrews Troy
Raphael Sbarge Commander / Tech
Derek Webster Sky Crane Pilot
Randy Oglesby Mechanic
Ross Bagley Dylan
John Bennett Perry Secret Serviceman
Sayed Badreya Arab Pilot
Tim Kelleher Technician
Keith Woulard Stunts
Lisa Jakub Alicia
Devon Gummersall Philip
Levan Uchaneishvili Russian Pilot
Dan Bradley Stunts, Stunt Coordinator
Wayne Wilderson Area 51 Technician
Richard Speight Jr. Ed
Pat Skipper Redneck
Barry Del Sherman Street Preacher
Dean Devlin Second Unit Director, Screenplay, Producer
Gene LeBell Stunts
Carlos Lacámara Radar Operator
Jennifer Lamb Stunts
Jim Piddock Reginald
Kevin Cooney Atlantic Air CINC
Chris Howell Stunts
Andrew Keegan Older Boy
Greg Collins Military Aide
David Pressman Whitmore's Aide
Jimmy N. Roberts Stunts
Richard Epcar ADR Voice Casting
Tom Morga Stunts
Adam Tomei Sailor
Anthony Crivello Lincoln
Sergio Mimica-Gezzan First Assistant Director
Ute Emmerich Executive Producer
John Capodice Mario
Debbie Evans Stunt Driver
Gilbert B. Combs Stunts
John Roesch Foley
Andy Gill Stunts
Malcolm Danare Intellectual on Roof
Darrin Prescott Stunts
Doug Coleman Stunts
Candace Neal Assistant Hairstylist