Them! - Cast
as Air Force Sergeant (uncredited)
James Whitmore
as Police Sgt. Ben Peterson
Edmund Gwenn
as Dr. Harold Medford
William Schallert
as Ambulance Attendant (uncredited)
Sean McClory
as Maj. Kibbee
Olin Howlin
as Jensen
Onslow Stevens
as Brig. Gen. Robert O'Brien
Joan Weldon
as Dr. Patricia 'Pat' Medford
James Arness
as Robert Graham
Chris Drake
as Trooper Ed Blackburn
Sandy Descher
as The Ellinson Girl
Mary Hokanson
as Mrs. Lodge
Fess Parker
as Alan Crotty