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