Trailer
Images
 | Alastair Sim as Millicent Fritton / Clarence Fritton |
 | Joyce Grenfell as P.W. Sgt. Ruby Gates |
 | George Cole as Flash Harry |
 | Hermione Baddeley as Miss Drownder |
 | Betty Ann Davies as Miss Waters |
 | Renée Houston as Miss Brimmer |
 | Beryl Reid as Miss Wilson |
 | Irene Handl as Miss Gale |
 | Mary Merrall as Miss Buckland |
 | Joan Sims as Miss Dawn |
 | Balbina as Mlle de St. Emilion |
 | Jane Henderson as Miss Holland |
| Diana Day as Jackie |
| Jill Braidwood as Florrie |
| Annabelle Covey as Maudie |
| Pauline Drewett as Celia |
| Jean Langston as Rosie |
 | Lloyd Lamble as Superintendent Kemp Bird |
 | Richard Wattis as Manton Bassett |
 | Guy Middleton as Eric Rowbottom-Smith |
 | Arthur Howard as Wilfred Woodley |
 | Michael Ripper as Albert Faning |
 | Eric Pohlmann as The Sultan of Makyad |
 | Sidney James as Benny |
 | Martin Walker as Hankinson |
 | Noel Hood as Bilston School Mistress |
| Vivienne Martin as Arabella |
| Elizabeth Griffiths as Gladys |
| Andrée Melly as Lucretia |
 | Belinda Lee as Amanda |
| Michael Kelly as Bill |
 | Tommy Duggan as Joe |
| Paul Connell as Sam |
| Lorna Henderson as Fatima |
| Vivien Wood as Miss Anderson |
| Cara Stevens as Sultan's Secretary |
 | Jerry Verno as Alf - the Bookmaker |
| Jack Doyle as Assistant Trainer |
 | Arthur Mullard as Henchman (uncredited) |
 | Carol White as Schoolgirl (uncredited) |
 | Barbara Windsor as Schoolgirl (uncredited) |
| Directing | |
| Frank Launder | Director |
Writing | |
| Frank Launder | Screenplay |
Production | |
| Frank Launder | Producer |
Sound | |
| Malcolm Arnold | Original Music Composer |
Editing | |
| Thelma Connell | Editor |
Camera | |
| Stanley Pavey | Director of Photography |
Writing | |
| Sidney Gilliat | Screenplay |
Production | |
| Sidney Gilliat | Producer |
Camera | |
| Reg Pope | Clapper Loader |
| Ray Hearne | Still Photographer |
Directing | |
| Jack N. Green | Third Assistant Director |
Camera | |
| Alan Hall | Clapper Loader |
Writing | |
| Val Valentine | Screenplay |
| Ronald Searle | Characters |
| Ronald Searle | Novel |
