Cast / Details
| Roddy McDowall | Mr. Jelk |
| Lennie Weinrib | Secretary Bird/King Leonidas |
| Conrad Bachmann | German Soldier (uncredited) |
| Eric Brotherson | (uncredited) |
| James Brugman | Royal Tank Regiment soldier playing tenor saxophone (uncredited) |
| Patrick Dennis-Leigh | Old Home Guardsman (uncredited) |
| David Tomlinson | Mr. Emelius Browne |
| Patrick Sullivan Burke | Soldier (uncredited) |
| Dal McKennon | Bear |
| Cyril Delevanti | Elderly Farmer |
| Reginald Owen | General Sir Brian Teagler |
| Bob Holt | Mr. Codfish (voice) (as Robert Holt) |
| John Orchard | Vendor |
| Manfred Lating | German Sergeant |
| Arthur Gould-Porter | Captain Ainsley Greer (as Arthur E. Gould-Porter) |
| Angela Lansbury | Eglantine Price |
| John Ericson | Colonel Heller |
| Bruce Forsyth | Swinburne |
| Cindy O'Callaghan | Carrie Rawlins |
| Roy Snart | Paul Rawlins |
| Ian Weighill | Charlie Rawlins |
| Tessie O'Shea | Mrs. Hobday |
| Ben Wrigley | Portobello Road Workman |
| Rick Traeger | German Sergeant |
| Sam Jaffe | Bookman |