Gene Barry в ролята на Dr. Clayton Forrester
Ann Robinson в ролята на Sylvia Van Buren
Lewis Martin в ролята на Pastor Dr. Matthew Collins
Les Tremayne в ролята на Maj. Gen. Mann
Frank Kreig в ролята на Fiddler Hawkins (uncredited)
Vernon Rich в ролята на Col. Ralph Heffner
Sandro Giglio в ролята на Dr. Bilderbeck
Ann Codee в ролята на Dr. Duprey (uncredited)
Robert Cornthwaite в ролята на Dr. Pryor (as Bob Cornthwaite)
Cedric Hardwicke в ролята на Commentary (voice) (as Sir Cedric Hardwicke)
Houseley Stevenson Jr. в ролята на Gen. Mann's Aide (as Housely Stevenson Jr.)
William Phipps в ролята на Wash Perry (as Bill Phipps)
Jack Kruschen в ролята на Salvatore
Paul Birch в ролята на Alonzo Hogue (uncredited)
Paul Frees в ролята на Second Radio Reporter / Opening Announcer
Henry Brandon в ролята на Cop at Crash Site
Peter Adams в ролята на Pine Summit Fire Watcher (uncredited)
Eric Alden в ролята на Man (uncredited)
Hugh Allen в ролята на Brigadier General (uncredited)
Ruth Barnell в ролята на Mother (uncredited)
Edgar Barrier в ролята на Prof. McPherson (uncredited)
Russ Bender в ролята на Dr. Carmichael (uncredited)
Oscar Blank в ролята на Man in Church (uncredited)
Nick Borgani в ролята на Man in Church (uncredited)
Hazel Boyne в ролята на Screaming Woman (uncredited)
Chet Brandenburg в ролята на Man in Church (uncredited)
George Bruggeman в ролята на Soldier (uncredited)
Nora Bush в ролята на Woman in Church (uncredited)
Tony Butala в ролята на Boy in Final Church (uncredited)
Mushy Callahan в ролята на Burning Soldier at Pit (uncredited)
Dick Cherney в ролята на Looter (uncredited)
Edward Colmans в ролята на Spanish Priest (uncredited)
James Conaty в ролята на Man at Pacific Institute of Science and Technology (uncredited)
Russ Conway в ролята на Rev. Bethany (uncredited)
Martin Coulter в ролята на Marine Sergeant (uncredited)
Vittorio Cramer в ролята на First Radio Reporter (uncredited)
Pierre Cressoy в ролята на Frenchman (uncredited)
Oliver Cross в ролята на Scientist (uncredited)
Jane Crowley в ролята на Woman in Church (uncredited)
Jim Davies в ролята на Marine Commanding Officer (uncredited)
Helen Dickson в ролята на Woman in Church (uncredited)
Ralph Dumke в ролята на Buck Monahan (uncredited)
Jimmie Dundee в ролята на Civil Defense Official (uncredited)
Al Ferguson в ролята на Police Chief (uncredited)
Dick Fortune в ролята на Marine Captain (uncredited)
Alex Frazer в ролята на Dr. James (uncredited)
Frank Freeman Jr. в ролята на Bum #2 Listening to Radio (uncredited)
Slim Gaut в ролята на Radio Listener (uncredited)
Charles Gemora в ролята на Martian (uncredited)
Ned Glass в ролята на Well-Dressed Looter (uncredited)
Jack Gordon в ролята на Man in Church (uncredited)
Fred Graham в ролята на Looter (uncredited)
Joe Gray в ролята на Looter (uncredited)
Herman Hack в ролята на Worker Listening to Radio (uncredited)
Nancy Hale в ролята на Young Wife (uncredited)
Virginia Hall в ролята на Girl (uncredited)
Ted Hecht в ролята на KGEB Reporter (uncredited)
Douglas Henderson в ролята на Staff Sergeant (uncredited)
Gertrude Hoffmann в ролята на Elderly News Vendor (uncredited)
Tex Holden в ролята на Man in Church (uncredited)
Jimmie Horan в ролята на Party Guest (uncredited)
Patricia Iannone в ролята на Girl (uncredited)
Jerry James в ролята на Reporter (uncredited)
Michael Jeffers в ролята на Worker Listening to Radio (uncredited)
Dick Johnstone в ролята на Man in Church (uncredited)
Carolyn Jones в ролята на Blonde Party Guest (uncredited)
Don Kohler в ролята на Colonel (uncredited)
Ivan Lebedeff в ролята на Dr. Gratzman (uncredited)
Freeman Lusk в ролята на Secretary of Defense (uncredited)
Herbert Lytton в ролята на Chief of Staff (uncredited)
Wilbur Mack в ролята на Official (uncredited)
George Magrill в ролята на Traffic Cop (uncredited)
Mike Mahoney в ролята на Townsman (uncredited)
John Mansfield в ролята на Man (uncredited)
Joel Marston в ролята на Military Policeman in Jeep (uncredited)
Sydney Mason в ролята на Fire Chief, Crew #3 (uncredited)
John Maxwell в ролята на Doctor (uncredited)
Mathew McCue в ролята на Man in Church (uncredited)
David McMahon в ролята на Minister, First Church (uncredited)
William Meader в ролята на P.E. Official (uncredited)
Lee Miller в ролята на Reporter (uncredited)
Ralph Montgomery в ролята на Los Angeles Red Cross Official (uncredited)
Alvy Moore в ролята на Zippy (uncredited)
Bob Morgan в ролята на Injured Civil Defense Worker (uncredited)
Charles Morton в ролята на Worker Listening to Radio (uncredited)
George Nardelli в ролята на Military Officer (uncredited)
Stanley Orr в ролята на Marine Major (uncredited)
George Pal в ролята на Bum #1 Listening to Radio (uncredited)
Walter Richards в ролята на Reporter (uncredited)
Robert Rockwell в ролята на Forest Ranger at Crash Site (uncredited)
Walter Sande в ролята на Sheriff Bogany (uncredited)
James Seay в ролята на Air Force Bomber Pilot (uncredited)
Allen D. Sewall в ролята на Man in Church (uncredited)
Lucile Sewall в ролята на Woman in Church (uncredited)
Cora Shannon в ролята на Old Woman (uncredited)
David Sharpe в ролята на Looter (uncredited)
Teru Shimada в ролята на Japanese Diplomat (uncredited)
Reginald Lal Singh в ролята на Military Officer (uncredited)
Bobby Somers в ролята на Deputy at Crash Site (uncredited)
Bert Stevens в ролята на Man in Church (uncredited)
Charles Stewart в ролята на Marine Captain (uncredited)
Jack Stoney в ролята на Looter (uncredited)
Gus Taillon в ролята на Elderly Man (uncredited)
Morton C. Thompson в ролята на Reporter (uncredited)
Arthur Tovey в ролята на Party Guest (uncredited)
Dale van Sickel в ролята на Looter (uncredited)
Dorothy Vernon в ролята на Elderly Woman at Square Dance (uncredited)
Edward Wahrman в ролята на Cameraman (uncredited)
Anthony Warde в ролята на Military Police Driver (uncredited)
Bob Whitney в ролята на Military Officer (uncredited)
Chalky Williams в ролята на Worker Listening to Radio (uncredited)
Waldon Williams в ролята на Boy (uncredited)
Bud Wolfe в ролята на Rescuing Civil Defense Worker (uncredited)
Fred Zendar в ролята на Marine Lieutenant (uncredited)