Cast
John Welsh
Sector Controller
Tony Thawnton
Chief Meteorological Officer
Edward Underdown
Duty Controller
Valerie Van Ost
Nurse
Michael Smee
Post Chief Observer
Larry Martyn
Post Observer
Guy Standeven
Post Observer
Ian Patterson
Doctor
Richard Butler
ROC Sector Officer
John Graham
Chief Scientist
Crew
Edward Dorian
Production Manager
Laurie Clarkson
Sound
Anthony Short
Director
Anthony Short
Writer
Cyril Randell
Producer
Alf Hicks
Cinematography
Gordon Hales
Editor
W. J. Carney
Technical Advisor
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