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