Synopsis
Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to discover why the victims were radioactively burned and why, shortly thereafter, a series of radiation-related incidents are occurring in an ever-growing straight line away from the fissure.
Cast

Dean Jagger
Dr. Adam Royston

Leo McKern
Inspector McGill

William Lucas
Peter Elliott

Edward Chapman
John Elliott

John Harvey
Maj. Cartwright

Michael Ripper
Sgt. Harry Grimsdyke

Anthony Newley
LCpl. 'Spider' Webb

Ian MacNaughton
Pvt. Haggis

Peter Hammond
Lt. Bannerman

Kenneth Cope
Pvt. Lansing
Michael Brooke
Willie Harding

Frazer Hines
Ian Osborn

Neil Wilson
Russell
Stella Kimball
Willie's Nurse

Jameson Clark
Jack Harding
Jane Aird
Vi Harding

Neil Hallett
Harry, the amorous intern
Marianne Brauns
Zena, the amorous nurse
Max Brimmell
Hospital Superintendant
Brown Derby
The Vicar

Norman MacOwan
Old Tom
Anthony Sagar
Rear Gate Night Watchman

Edwin Richfield
Soldier Burned on Back

John Stone
Gerry
More like this

Quatermass 2

The Beast from 20,000 Fathoms

Worldbreaker

28 Years Later

28 Years Later: The Bone Temple

The Thing

Come Play

Lifeforce

The Return

The Fly

Slither

The Void

Splinter

Arcadian

Them!

Underwater

The Blob

Love and Monsters

Island of Terror

Color Out of Space