Cast
Jack Hawkins
Herbert Evans
Donald Wolfit
Sydney Parsons
Robert Rendel
Sir Herbert Farquharson
Lilian Oldland
Joan Dryden
Val Gielgud
Julian Caird
Peter Haddon
Guy Bannister
Ian Hunter
Detective Inspector Gregory
Gordon McLeod
Chief Commissioner
Howard Douglas
Weisskopf (uncredited)
Arthur Hambling
Man on BBC Reception Desk (uncredited)
Bruce Lester
Peter Ridgwell (uncredited)
Austin Trevor
Leopold Dryden
Henry Kendall
Rodney Fleming
Ivor Barnard
Joseph Higgins (uncredited)
Betty Ann Davies
Poppy Levine