
94 minutes
6/16/1954
As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.

James Whitmore
as Sgt. Ben Peterson

James Arness
as FBI Agent Robert Graham

Joan Weldon
as Dr. Pat Medford

Edmund Gwenn
as Dr. Harold Medford

Onslow Stevens
as Brig. Gen. Robert O'Brien

Sean McClory
as Maj. Kibbee

Sandy Descher
as The Ellinson Girl

Chris Drake
as Trooper Ed Blackburn

Don Shelton
as Trooper Capt. Fred Edwards

Fess Parker
as Alan Crotty
Mary Alan Hokanson
as Mrs. Lodge

Olin Howland
as Jensen

William Schallert
as Ambulance Attendant

Ann Doran
as Child Psychiatrist

Dub Taylor
as Railroad Yard Watchman

Leonard Nimoy
as Army Sergeant

Richard Deacon
as Bald Reporter at L.A. News Conference

Forbes Murray
as Government Official

Kenner G. Kemp
as Trooper #2
Charles Perry
as Soldier

Dorothy Green
as Matron

Willis Bouchey
as Official at D.C. Meeting
Mary Lou Holloway
as Blonde at Police Station

Dick York
as Teenager in Police Station