character - Roger Harris

character - The Doctor

character - David Forbes

character - Cabinet Secretary

character - Mr. Westphal

character - Professor Thompson

character - Charlie Goldring

character - Harry Bliss

character - Chief Sullivan

character - Secretary of State (uncredited)

character - Archibald Cox

character - Judge

character - Bailey

character - General

character - Mr. Burrows

character - Massey's Attorney (uncredited)

character - MacAlwee

character - 3rd Senator

character - Studio Executive (uncredited)

character - Adm. Nimitz

character - Adm. Nimitz

character - Mental Patient (uncredited)

character - Judge Roger Allman

character - Diplomat

character - Grantland Rice

character - Farrell

character - A.C. Thompson

character - Dr. Cowan

character - Ted Thatcher

character - Irving Patrick

character - Deputy Police Chief Eugene W. Towne

character - George Greenleaf / Ray Fahasateur

character - John McLinton

character - Mr. Jameson from Chicago (uncredited)

character - Adm. Phillips

character - Station Commander

character - Captain Franklin

character - Judge

character - Max Benson

character - Commisioner Grant

character - Gen. Towns

character - Amos Lawrence

character - Secretary of State

character - Defense Secretary

character - Leonard - College Regent (uncredited)

character - George Packer

character - Priest-Secretary

character - Wilson Ingersall

character - Admiral Haines

character - Mr. Bowers

character - Mr. Finletter

character - Judge

character - Miles Gratton (uncredited)

character - Father

character - Colonel Reed

character - Mr. Gregory

character - Gilbert

character - Col. Newcomb

character - Mr. Simmons

character - Alfred E. Chambers

character - Admiral Westervliet

character - Admiral Komack

character - Captain

character - Dr. Gordon Miller

character - General Moore

character - General Alton

character - Majordomo

character - Franklyn Buckley

character - Frank Patton

character - Sheriff Clark

character - General Squires

character - John C. Cavanaugh

character - Dr. Morton

character - Leith Houser

character - Gen. Beauregard

character - Mayor Hall

character - McAdams

character - Charles Lee Horne

character - General Fredricks

character - Leland Hagerman

character - Newscaster (uncredited)

character - Capt. Pete Ingersoll

character - Coroner

character - Judge Cornwall

character - Clinton Saunders

character - Evacuee from Newhall

character - Capt. Keith Gregory

character - Meyers

character - Governor of the Mountains (uncredited)

character - The Commissioner

character - Board member (uncredited)

character - Maj. Horace Tillman

character - Executive (uncredited)

character - Martian

character - Glen Stillwell

character - Benny

character - Sheriff Crowell

character - Henry Hansen

character - Amos Judd

character - George Ranger

character - Judge #2

character - Captain Hillman

character - Judge Brawley

character - Second Judge

character - Mr. Baker

character - Mr. Howard