Writer
Godfrey Harrison
WRITER
Stars (in credits order)
John Le Mesurier
Sir Alexander Blythe
Barry MacGregor
Peter Blythe
Hugo Schuster
Professor Mahler
Peggy Livesey
Margot Francis
Michael Croudson
Paul Melvyn
Ferdy Mayne
Chief of Intelligence
Edgar K. Bruce
Lynch
Oliver Burt
British Security Colonel
Ian Lubbock
Raymond Viles
Geoffrey Barrie
Lobner
