Cast
Ian Hunter
Detective Inspector Gregory
Austin Trevor
Leopold Dryden
Lilian Oldland
Joan Dryden
Henry Kendall
Rodney Fleming
Val Gielgud
Julian Caird
Peter Haddon
Guy Bannister
Betty Ann Davies
Poppy Levine
Jack Hawkins
Herbert Evans
Donald Wolfit
Sydney Parsons
Robert Rendel
Sir Herbert Farquharson
Gordon McLeod
Chief Commissioner
Hannen Swaffer
Hannen Swaffer