Where to watch
Free
Provider data via JustWatch.
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
- PS
Philip Stainton
The Sergeant
Frankie Howerd
The Barrow Boy
- MB
Madge Brindley
Large Lady (uncredited)
- HB
Hélène Burls
Hypatia (uncredited)
Kenneth Connor
Cab Driver (uncredited)
