 | Harry H. Corbett als Sidney Bung |
 | Kenneth Williams als Orlando Watt |
 | Jim Dale als Albert Potter |
 | Charles Hawtrey als Dan Dann |
 | Fenella Fielding als Valeria Watt |
 | Joan Sims als Emily Bung |
 | Angela Douglas als Doris Mann |
 | Bernard Bresslaw als Sockett |
 | Peter Butterworth als Detective Constable Slobotham |
 | Jon Pertwee als Doctor Fettle |
 | Michael Ward als Mr. Vivian |
 | Tom Clegg als Oddbod |
 | Billy Cornelius als Oddbod Junior |
 | Norman Mitchell als Cabby |
 | Frank Thornton als Mr. Jones |
| Frank Forsyth als Desk Sergeant |
 | Marianne Stone als Mrs. Parker |
| Anthony Sagar als Policeman |
| Sally Douglas als Girl |
| Denis Blake als Rubbatiti |
 | Alexandra Dane als Stout Woman |
 | Gerald Thomas als Oddbod Junior (voice) |
| Gerald Thomas | Director |
| Talbot Rothwell | Screenplay |
| Peter Rogers | Producer |
| Eric Rogers | Original Music Composer |
| Alan Hume | Director of Photography |
| Rod Nelson-Keys | Editor |
| Eric Rogers | Music |
| Frank Bevis | Associate Producer |
| Weston Drury Jr. | Casting |
| Bert Davey | Art Direction |
| Emma Selby-Walker | Costume Design |
| Stella Rivers | Hairdresser |
| Geoffrey Rodway | Makeup Artist |
| R.L. Alexander | Makeup Artist |
| Ron Jackson | Unit Manager |
| Peter Bolton | Assistant Director |
| Al Burgess | Second Assistant Director |
| Dusty Symonds | Third Assistant Director |
| Ted Ambrose | Draughtsman |
| Jock Kay | Scenic Artist |
| Michael Lamont | Draughtsman |
| George Noonan | Property Buyer |
| Bill Surridge | Construction Manager |
| Helen Thomas | Set Dresser |
| Ken Barker | Sound Recordist |
| Arthur Ridout | Sound Editor |
| C.C. Stevens | Sound Recordist |
| Derek Kavanagh | Boom Operator |
| Paul Smith | Assistant Sound Editor |
| David Stephenson | Boom Operator |
| Godfrey A. Godar | Camera Operator |
| Bert Bosher | Electrician |
| Albert Clarke | Still Photographer |
| John Crawford | Focus Puller |
| Fred Graver | Grip |
| Bob Smith | Clapper Loader |
| Margaret Lewin | Wardrobe Assistant |
| Vi Murray | Wardrobe Supervisor |
| Maureen Howard | Assistant Editor |
| Selwyn Petterson | Assistant Editor |
| David Softley | Assistant Editor |
| Stephen Warwick | First Assistant Editor |
| Eric Rogers | Conductor |
| Penny Daniels | Continuity |
| Joy Bayley | Production Secretary |
