A broke British nobleman targets his Canadian uncle, but other relatives get in the way.
| Actor | Role |
|---|---|
 Nigel PatrickHenry Clitterbern | Henry Clitterbern |
 Charles CoburnUncle George Clitterbern | Uncle George Clitterbern |
 Wendy HillerEdith Clitterbern | Edith Clitterbern |
 Katie JohnsonAlice | Alice |
 Anthony NewleyEdward | Edward |
 Athene SeylerGrannie (Victoria Clitterbern) | Grannie (Victoria Clitterbern) |
 Noel HoodAunt Marjorie | Aunt Marjorie |
 Kenneth FortescueAlbert Clitterbern | Albert Clitterbern |
| PPaddy WebsterConstance Clitterbern | Constance Clitterbern |
 Michael CaineGilrony | Gilrony |
 Trevor ReidInspector | Inspector |
 Cyril LuckhamCoroner | Coroner |
| JJohnson BaylyRadio Officer | Radio Officer |
 Martin BoddeyPolice Sergeant | Police Sergeant |
 Kevin StoneyBar Steward | Bar Steward |
| AAnthony ShawColonial Type | Colonial Type |
 Ian WilsonPostman | Postman |
| JJack MandevilleReporter at Inquest (uncredited) | Reporter at Inquest (uncredited) |
| TTony CastletonReporter at Inquest (uncredited) | Reporter at Inquest (uncredited) |