"Five oddball criminals planning a bank robbery rent rooms on a cul-de-sac from an octogenarian widow under the pretext that they are classical musicians."
Alec Guinness
as Professor Marcus
Cecil Parker
as Claude, alias 'Major Courtney'
Herbert Lom
as Louis, alias 'Mr. Harvey'
Peter Sellers
as Harry, alias 'Mr. Robinson'
Danny Green
as 'One-Round', alias 'Mr. Lawson'
Katie Johnson
as Mrs. Wilberforce
Jack Warner
as The Superintendent
Philip Stainton
as The Sergeant
Frankie Howerd
as The Barrow Boy
Madge Brindley
as Large Lady (uncredited)
Hélène Burls
as Hypatia (uncredited)
Kenneth Connor
as Cab Driver (uncredited)
Michael Corcoran
as Burglar (uncredited)
Harold Goodwin
as Parcels Clerk (uncredited)
Fred Griffiths
as Junk Man (uncredited)
Lucy Griffiths
as Miss Pringle (uncredited)
George Hilsdon
as Security Van Driver (uncredited)
Vincent Holman
as Station Master (uncredited)
Stratford Johns
as Security Guard (uncredited)
Sam Kydd
as Second Cab Driver (uncredited)
Edie Martin
as Lettice (uncredited)
Jack Melford
as Detective (uncredited)
Arthur Mullard
as (uncredited)
Ewan Roberts
as Constable (uncredited)
George Roderick
as Radio Car Policeman (uncredited)
John Rudling
as Nervous Man (uncredited)
Leonard Sharp
as Pavement Artist (uncredited)
Peter Williams
as Detective at Parcels Office (uncredited)
Neil Wilson
as Policeman (uncredited)
Phoebe Hodgson
as Constance (uncredited)
Jack Harris
Editor
Michael Balcon
Producer
Alexander Mackendrick
Director
William Rose
Screenplay
Otto Heller
Director of Photography
Jimmy O'Connor
Alex Garfath
Makeup Artist
Tony Rimmington
Set Designer
Chic Waterson
Camera Operator
Anthony Mendleson
Costume Design
W. Simpson Robinson
Scenic Artist
Daphne Martin
Hairstylist
Ray Parslow
First Assistant Camera
Jim Morahan
Art Direction
Alan Bryce
Jim Clark
Assistant Editor
Sydney Pearson
Special Effects
Dock Mathieson
Music Director
Tom Pevsner
Assistant Director
Harry Aldous
Norman Dorme
Joan Bridge
Color Timer
Hal Mason
Production Supervisor
David Peers
Unit Production Manager
Herbert Smith
Bert Davey
Assistant Art Director
Jack Shampan
Stephen Dalby
Supervising Sound Editor
Seth Holt
Associate Producer
Story
Felicia Manheim
Continuity
Leo Wilkins
Sound Recordist
Gordon Stone
Sound Editor
Robin Clarke
Tristram Cary
Original Music Composer