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