자이언트 크로

Jeff Morrow

Mitchell 'Mitch' MacAfee

Mara Corday

Sally Caldwell

Morris Ankrum

Lt. Gen. Edward Considine

Louis Merrill

Pierre Broussard

Edgar Barrier

Dr. Karol Noymann

Robert Shayne

Gen. Van Buskirk

Frank Griffin

Pete - Pilot

Clark Howat

Maj. Bergen

Morgan Jones

Lieutenant, Radar Officer

Benjie Bancroft

Civil Aeronautics Board Member (uncredited)

Brad Brown

Pool Party Diver (uncredited)

Al Cantor

AF Projectionist (uncredited)

George Cisar

Admonishing Man on Airliner (uncredited)

Bud Cokes

Civil Aeronautics Board Member (uncredited)

Leonard P. Geer

Paramedic (uncredited)

Dabbs Greer

Fighter Pilot, (archive footage) (uncredited)

Sol Murgi

Civil Aeronautics Board Member (uncredited)

Fred F. Sears

Narrator (voice) (uncredited)

Robert B. Williams

First State Trooper (uncredited)