Trailer
Cast
Harold Goodwin
Parcels Clerk (uncredited)
Lucy Griffiths
Miss Pringle (uncredited)
Neil Wilson
Policeman (uncredited)
Herbert Lom
Louis, alias 'Mr. Harvey'
Edie Martin
Lettice (uncredited)
Alec Guinness
Professor Marcus
Stratford Johns
Security Guard (uncredited)
Arthur Mullard
(uncredited)
Peter Williams
Detective at Parcels Office (uncredited)
Jack Warner
The Superintendent
Kenneth Connor
Cab Driver (uncredited)
Fred Griffiths
Junk Man (uncredited)
Sam Kydd
Second Cab Driver (uncredited)
Jack Melford
Detective (uncredited)
Cecil Parker
Claude, alias 'Major Courtney'
Peter Sellers
Harry, alias 'Mr. Robinson'
Frankie Howerd
The Barrow Boy
Ewan Roberts
Constable (uncredited)
Danny Green
'One-Round', alias 'Mr. Lawson'
Katie Johnson
Mrs. Wilberforce