![]() | A tiny country persuades the Americans and Soviets that they're starting a space program, when they really just want some money for new plumbing. |
| Margaret Rutherford | - | Grand Duchess Gloriana XIII |
| Ron Moody | - | Prime Minister Rupert Mountjoy |
| Bernard Cribbins | - | Vincent Mountjoy |
| David Kossoff | - | Professor Kokintz |
| Terry-Thomas | - | Maurice Spender |
| June Ritchie | - | Cynthia |
| John Le Mesurier | - | British Delegate |
| John Phillips | - | Bracewell - U.S. Delegate |