 Jeff MorrowMitchell 'Mitch' MacAfee | Mitchell 'Mitch' MacAfee |
 Mara CordaySally Caldwell | Sally Caldwell |
 Morris AnkrumLt. Gen. Edward Considine | Lt. Gen. Edward Considine |
 Louis MerrillPierre Broussard | Pierre Broussard |
 Edgar BarrierDr. Karol Noymann | Dr. Karol Noymann |
 Robert ShayneGen. Van Buskirk | Gen. Van Buskirk |
| FFrank GriffinPete - Pilot | Pete - Pilot |
 Clark HowatMaj. Bergen | Maj. Bergen |
 Morgan JonesLieutenant, Radar Officer | Lieutenant, Radar Officer |
| BBenjie BancroftCivil Aeronautics Board Member (uncredited) | Civil Aeronautics Board Member (uncredited) |
| BBrad BrownPool Party Diver (uncredited) | Pool Party Diver (uncredited) |
| AAl CantorAF Projectionist (uncredited) | AF Projectionist (uncredited) |
 George CisarAdmonishing Man on Airliner (uncredited) | Admonishing Man on Airliner (uncredited) |
| BBud CokesCivil Aeronautics Board Member (uncredited) | Civil Aeronautics Board Member (uncredited) |
 Leonard P. GeerParamedic (uncredited) | Paramedic (uncredited) |
 Dabbs GreerFighter Pilot, (archive footage) (uncredited) | Fighter Pilot, (archive footage) (uncredited) |
 Sol MurgiCivil Aeronautics Board Member (uncredited) | Civil Aeronautics Board Member (uncredited) |
 Fred F. SearsNarrator (voice) (uncredited) | Narrator (voice) (uncredited) |
 Robert B. WilliamsFirst State Trooper (uncredited) | First State Trooper (uncredited) |
