as Miles Gratton (uncredited)
as Benny
as Charlie Goldring
as Secretary of State (uncredited)
as Dr. Morton
as Brigadier General
as Mr. Jameson from Chicago (uncredited)
as Mr. Simmons
as Colonel Reed
as Station Commander
as Coroner
as Leonard - College Regent (uncredited)
as Board member (uncredited)
as Secretary of State
as Maj. Horace Tillman
as Evacuee from Newhall
as Defense Secretary
as Mental Patient (uncredited)
as 3rd Senator
as Executive (uncredited)
as Archibald Cox
as Judge
as Harry Bliss
as Governor of the Mountains (uncredited)
as David Forbes
as MacAlwee
as A.C. Thompson
as Grantland Rice
as Capt. Pete Ingersoll
as Newscaster (uncredited)
as Gen. Towns
as Studio Executive (uncredited)
as Mr. Tate (uncredited)
as General
as Bailey
as Adm. Nimitz
as Chief Sullivan
as Diplomat
as Captain Franklin
as George Packer
as Adm. Phillips
as Amos Lawrence
as Mr. Gregory
as George Ranger
as Judge #2
as Captain Hillman
as Second Judge
as Judge Brawley
as The Commissioner
as Admiral Westervliet
as Admiral Komack
as Mr. Burrows
as Massey's Attorney (uncredited)
as General Fredricks
as Leland Hagerman
as John C. Cavanaugh
as Judge Cornwall
as Alfred E. Chambers
as Martian
as Ted Thatcher
as Irving Patrick
as Deputy Police Chief Eugene W. Towne
as George Greenleaf / Ray Fahasateur
as John McLinton
as General Moore
as General Alton
as Majordomo
as General Squires
as Speaker
as Frank Patton
as Sheriff Clark
as Sheriff Crowell
as Keith Milland
as Charles Lee Horne
as Captain
as Dr. Gordon Miller
as Henry Hansen
as Amos Judd
as Gilbert
as Col. Newcomb
as Admiral Haines
as Priest-Secretary
as Farrell
as Leith Houser
as Mr. Bowers
as Mr. Finletter
as Franklyn Buckley
as Mr. Baker
as Roger Harris
as Dr. Cowan
as Max Benson
as Commisioner Grant
as Gen. Beauregard
as Mayor Hall
as The Doctor
as Wilson Ingersall
as Capt. Keith Gregory
as Meyers
as Mr. Westphal
as Mr. Howard
as Glen Stillwell
as Father
as McAdams
as Clinton Saunders
as Cabinet Secretary
as Professor Thompson
as Judge Roger Allman
