81 minutos
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.
                                                        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
                                                        Lawrence James
Gerard
                                                        Frank Taylor
Constable Williams
                                                        John Stirling
Police Car Driver
                                                        Jack Lambert
Police Sergeant
                                                        Archie Duncan
Sgt. Yeardye