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