Cast & crew
Who Done It? (1956)
Directed by Basil Dearden Written by T. E. B. Clarke
Cast
| Benny Hill | Hugo |
| Belinda Lee | Frankie Monaldi |
| David Kossoff | Zacco |
| Garry Marsh | Hancock |
| George Margo | Barakov |
| Ernest Thesiger | Sir Te |
| Denis Shaw | Stumpf |
| Stratford Johns | Coleman |
| Frederick Schiller | Gruber |
| Jeremy Hawk | Himself |
| Thorley Walters | Raymond |
| Philip Stainton | Okinawa Airline Ticket Agent |
| Warwick Ashton | Trent Roberts |
| Nicholas Phipps | Newsreel Scientist |
| Peter Bull | Newsreel Scientist |
| Gibb McLaughlin | Newsreel Scientist |
| Ernest Jay | Newsreel Scientist |
| Harold Scott | Newsreel Scientist |
| Norah Blaney | Actress |
| Kim Kimber | (uncredited) |
| Colin McKenzie | (uncredited) |
| Guy Longpre | (uncredited) |
| Arthur Lowe | (uncredited) |
| Fred Machon | Dispatcher |
| Louis Matto | Scientific |
| Robert McDermott | (uncredited) |
| Lola Morice | (uncredited) |
| Jim Morris | (uncredited) |
| Ewen Solon | (uncredited) |
| George Spence | (uncredited) |
| Guy Standeven | (uncredited) |
| Philip Stewart | (uncredited) |
| Fred Stroud | (uncredited) |
| Richard Thorp | Police Officer |
| Billy Wilmot | Wish |
| Rita Tobin-Weske | Wish |
| James Ure | Scientific |
| Harry Van Engel | (uncredited) |
| Meadows White | (uncredited) |
| John Wilder | Wish |
| George Wilson | (uncredited) |
| Charles Hawtrey | WJLB Disc Jockey |
| Dagenham Girl Pipers | Themselves |
| Champion Appeline Hector of West Summerland | Fabian Haas |
| John Adams | (uncredited) |
| Chris Adcock | (uncredited) |
| Terence Alexander | (uncredited) |
| Jean Alsop | (uncredited) |
| Elinor Bennett | (uncredited) |
| Paul Beradi | Wish |
| John Boxer | (uncredited) |
| Charles Saynor | Outside |
| Cyril Smith | Plant |
| Arthur Rigby | Station |
| Doris Rogers | (uncredited) |
| Pat Ryan | (uncredited) |
| Ian Selby | (uncredited) |
| Charles Wood | (uncredited) |
| Doris Yorke | (uncredited) |
| Ronnie Brody | (uncredited) |
| Tony Castleton | (uncredited) |
| Jess Conrad | (uncredited) |
| Arthur Dibbs | Wish |
| Richard Duke | (uncredited) |
| Mabel Etherington | (uncredited) |
| Chick Fowles | Wish |
| Rex Garner | Wish |
| Harold Goodwin | Pringle |
| Lucy Griffiths | (uncredited) |
| Pat Hagan | Outside |
| Victor Hagan | Wish |
| Patrick Halpin | (uncredited) |
| Irene Handl | (uncredited) |
| Jack Hetherington | (uncredited) |
| Vincent Holman | (uncredited) |
| Lindsay Hooper | (uncredited) |
| Glyn Houston | (uncredited) |
| Arthur Howell | (uncredited) |
| Anthony Lang | Wish |
| Fred Nicholas | (uncredited) |
| Paul Phillips | (uncredited) |
| Derek Prentice | (uncredited) |
| Keith Pyott | (uncredited) |
| Charles Rayford | Wish |
| Ernie Rice | (uncredited) |
Crew
| T. E. B. Clarke | Screenplay |
| David Tringham | Third Assistant Director |
| Michael Balcon | Executive Producer |
| Stephen Dalby | Sound Supervisor |
| E.R. Taylor | Special Effects |
| W. Simpson Robinson | Scenic Artist |
| Basil Dearden | Co-Producer |
| Jean Graham | Continuity |
| Basil Dearden | Director |
| Michael Relph | Producer |
| Philip Green | Original Music Composer |
| Hal Mason | Production Supervisor |
| Chic Waterson | Camera Operator |
| Harry Frampton | Makeup Artist |
| Alastair McIntyre | Sound Editor |
| Jim Morahan | Art Direction |
| Daphne Martin | Hairstylist |
| Dock Mathieson | Conductor |
| Peter Tanner | Editor |
| Otto Heller | Director of Photography |
| David Peers | Unit Production Manager |
| Tom Pevsner | Assistant Director |
| Leo Wilkins | Sound Recordist |
| Anthony Mendleson | Costume Design |