Credits
Cast
Marshall Thompson
Major Jeff Cummings
Kynaston Reeves
Prof. R. E. Walgate
Kim Parker
Barbara Griselle
Stanley Maxted
Col. Butler
Terry Kilburn
Capt. Al Chester
James Dyrenforth
Mayor Hawkins
Robert MacKenzie
Const. Howard Gibbons
Peter Madden
Dr. Bradley
Gil Winfield
Dr. Warren
Michael Balfour
Sgt. Kasper
Launce Maraschal
Melville
Meadows White
Ben Adams
E. Kerrigan Prescott
Atomic Engineer
Lala Lloyd
Amelia Adams
Shane Cordell
Nurse
Sheldon Allan
Sentry (uncredited)
Alexander Archdale
Minister (uncredited)
Eddie Boyce
Jacques Griselle (uncredited)
Victor Hagan
Villager (uncredited)
Victor Harrington
Villager (uncredited)
Jack Hetherington
Sergeant in Office (uncredited)
Richard Neller
Townsman (uncredited)
Tom Watson
Technical Sergeant (uncredited)
Art
John Elphick
Set Designer
Camera
Leo Rogers
Camera Operator
Lionel Banes
Director of Photography
Martin Curtis
Second Unit Director of Photography
Costume & Make-Up
Anna Duse
Costume Supervisor
Barbara Barnard
Hairstylist
Jim Hydes
Makeup Artist
Crew
Karl-Ludwig Ruppel
Special Effects
Flo Nordhoff
Special Effects
Peter Neilson
Special Effects
Directing
Douglas Hickox
Assistant Director
Hazel Swift
Continuity
Arthur Crabtree
Director
Editing
Richard Q. McNaughton
Editor
Production
Charles F. Vetter
Executive Producer
Richard Gordon
Executive Producer
John Croydon
Producer
Ronald Kinnoch
Production Manager, Co-Producer
Sound
Frederic Lewis
Conductor
Buxton Orr
Original Music Composer
Terry Poulton
Sound Editor
Peter T. Davies
Sound Recordist
Writing
Amelia Reynolds Long
Original Film Writer
Herbert J. Leder
Screenplay