Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast and although he sustains burns over 90% of his body, he survives. Then he begins to grow, but as he grows he starts losing his mind. By the time he stops he is 50 ft tall, insane and is on the rampage.
Glenn Langan
as Lt. Col. Glenn Manning
Cathy Downs
as Carol Forrest
William Hudson
as Dr. Paul Linstrom
Larry Thor
as Maj. Eric Coulter, MD
James Seay
as Col. Hallock
Russ Bender
as Richard Kingman
Hank Patterson
as Henry
Frank Jenks
as Truck Driver
Jimmy Cross
as Sergeant at Reception Desk
June Jocelyn
as Nurse Wilson
Stanley Lachman
as Lt. Cline
Harry Raybould
as MP at Main Gate