Cast
Alec Guinness
Professor Marcus
Cecil Parker
Claude, alias 'Major Courtney'
Herbert Lom
Louis, alias 'Mr. Harvey'
Peter Sellers
Harry, alias 'Mr. Robinson'
Danny Green
'One-Round', alias 'Mr. Lawson'
Katie Johnson
Mrs. Wilberforce
Jack Warner
The Superintendent
Philip Stainton
The Sergeant
Frankie Howerd
The Barrow Boy
Madge Brindley
Large Lady (uncredited)
Crew
Jack Harris
Editor
Michael Balcon
Producer
Alexander Mackendrick
Director
William Rose
Screenplay
Otto Heller
Director of Photography
Alex Garfath
Makeup Artist
Tony Rimmington
Set Designer
Chic Waterson
Camera Operator
Anthony Mendleson
Costume Design
W. Simpson Robinson
Scenic Artist
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