 Burt LancasterGen. James Mattoon Scott | Gen. James Mattoon Scott |
 Kirk DouglasCol. Martin "Jiggs" Casey | Col. Martin "Jiggs" Casey |
 Fredric MarchPresident Jordan Lyman | President Jordan Lyman |
 Ava GardnerEleanor Holbrook | Eleanor Holbrook |
 Edmond O'BrienSen. Raymond Clark | Sen. Raymond Clark |
 Martin BalsamPaul Girard | Paul Girard |
 Andrew DugganCol. William "Mutt" Henderson | Col. William "Mutt" Henderson |
 Hugh MarloweHarold McPherson | Harold McPherson |
 Whit BissellSen. Frederick Prentice | Sen. Frederick Prentice |
 Helen KleebEsther Townsend | Esther Townsend |
 George MacreadyChristopher Todd | Christopher Todd |
 Richard AndersonCol. Murdock | Col. Murdock |
| BBart BurnsSecret Service White House Chief Art Corwin | Secret Service White House Chief Art Corwin |
| JJohn AlbanParty Guest (uncredited) | Party Guest (uncredited) |
| MMonya AndreParty Guest (uncredited) | Party Guest (uncredited) |
 Malcolm AtterburyHorace the White House Physician (uncredited) | Horace the White House Physician (uncredited) |
| WWalter BaconReporter (uncredited) | Reporter (uncredited) |
 Al BainReporter (uncredited) | Reporter (uncredited) |
 Bill BaldwinAnnouncer (voice) (uncredited) | Announcer (voice) (uncredited) |
| JJohn BartonReporter (uncredited) | Reporter (uncredited) |
 Jack BerleReporter (uncredited) | Reporter (uncredited) |
 Robert BrubakerGen. Diefenbach (uncredited) | Gen. Diefenbach (uncredited) |
 William ChalleeGen. Riley (uncredited) | Gen. Riley (uncredited) |
| DDick CherneyReporter (uncredited) | Reporter (uncredited) |
| CCharles CirilloReporter (uncredited) | Reporter (uncredited) |
| HHarry DennyParty Guest (uncredited) | Party Guest (uncredited) |
| MMimi DillardMother at Dulles Airport (uncredited) | Mother at Dulles Airport (uncredited) |
| AAlphonso DuBoisReporter (uncredited) | Reporter (uncredited) |
| FFred FisherWaiter (uncredited) | Waiter (uncredited) |
| WWesley GaleReporter (uncredited) | Reporter (uncredited) |
