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
Sierbahnn
They made a real effort Given the technology available to the team making this, for the budget they had, they tried. Some of the effects, with the giant, as not great, not even by the 50's standards. Certainly it looks hokey to us. As they were using a man for the colossus, they could not use a ...