A giant prehistoric praying mantis, recently freed from the Arctic ice, voraciously preys on American military at the DEW Line and works its way south.
as Col. Joe Parkman
as Dr. Nedrick 'Ned' Jackson
as Marge Blaine
as Gen. Mark Ford
as Prof. Anton Gunther
as Corporal
as Lt. Fred Pizar
as Sgt. Pete Allen
as Lou
as Mrs. Farley
as State Trooper
as Capt. Frank Carver
as Narrator (voice)
as Photographer (uncredited)
as C-47 Pilot (uncredited)
