Sam likes his children to be grown-up chaps. So nine-year-old Harry is at a disadvantage in the battle of wits that develops...
| Actor | Role |
|---|---|
 Dinsdale LandenSam Malkyn | Sam Malkyn |
| AAnn PenningtonBobby Malkyn | Bobby Malkyn |
| DDavid Max VaughanHarry | Harry |
 Carole NimmonsJacky Ogden | Jacky Ogden |
 Holly PalanceMrs. Ede | Mrs. Ede |
| JJane HowMrs. Next Door | Mrs. Next Door |
| DDavid RowlandsMr. Next Door | Mr. Next Door |
| TTony CalvinMr. Nesbitt | Mr. Nesbitt |
 Tony SteedmanGeorge | George |
 Saeed JaffreyDr. Haq | Dr. Haq |
| SSeymour MatthewsPolice Constable | Police Constable |
 Pip MillerPolice Constable | Police Constable |