| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bill Lewthwaite | Crew | Editing | Editor |
Dorothy Holloway | Crew | Production | Casting |
Ivan King | Crew | Art | Art Direction |
 Mario Zampi | Crew | Directing | Director, Producer |
Michael Pertwee | Crew | Writing | Writer |
 Stanley Black | Crew | Sound | Music |
Stanley Pavey | Crew | Crew | Cinematography |
Fred Ryan | Crew | Sound | Sound Recordist |
Giulio Zampi | Crew | Production | Associate Producer |
 Andy Ho | Cast | Actor | Chinese Man in Pub (uncredited) |
 Arnold Marlé | Cast | Actor | Scientist (uncredited) |
 Austin Trevor | Cast | Actor | Minister with Heart Attack (uncredited) |
Barry Keegan | Cast | Actor | 2nd Irishman (uncredited) |
 David Lodge | Cast | Actor | Policeman |
 Dennis Price | Cast | Actor | Nigel Dennis |
 Edie Martin | Cast | Actress | Lady in Autograph Crowd (uncredited) |
 George Benson | Cast | Actor | Photographer (uncredited) |
 Georgina Cookson | Cast | Actress | Lady Lucy Mayley |
 Gibb McLaughlin | Cast | Actor | Old Man in T.V. Show Audience (uncredited) |
 Henry Hewitt | Cast | Actor | Gunsmith |
 Jerold Wells | Cast | Actor | 1st Irishman (uncredited) |
 Joan Sims | Cast | Actress | Ethel Ransom |
 John Stuart | Cast | Actor | Police Inspector |
 Kenneth Griffith | Cast | Actor | Porter |
 Kenneth Kove | Cast | Actor | Man Who Lets Out Police Car's Tyre (uncredited) |
 Marjorie Rhodes | Cast | Actress | Lady on Phone (uncredited) |
 Michael Ripper | Cast | Actor | J.E. Freeman - Greengrocer (uncredited) |
 Miles Malleson | Cast | Actor | Rev. Bastable |
 Peggy Mount | Cast | Actress | Flora Ransom |
 Peter Sellers | Cast | Actor | Sonny MacGregor |
Raymond Rollett | Cast | Actor | Pub Landlord (uncredited) |
 Ronald Adam | Cast | Actor | Chemist (uncredited) |
 Shirley Eaton | Cast | Actress | Melissa Right |
 Terry-Thomas | Cast | Actor | Lord Henry Mayley |
 Tom Gill | Cast | Actor | Police Officer (uncredited) |
 Victor Rietti | Cast | Actor | Doctor |
 Wally Patch | Cast | Actor | Paunchy Old Man |
 Wilfrid Lawson | Cast | Actor | Walter - Contestant in T.V. Show (uncredited) |
 Bill Edwards | Cast | Bill Murphy | |
Peter Noble | Cast | T.V. Announcer | |
Muriel Greenslade | Cast | Dinner Guest (uncredited) | |
Joan Hurley | Cast | Authoress | |
| Person | Type | Job | Role(s) |
