 Nicol WilliamsonBill Maitland | Bill Maitland |
 Eleanor FazanAnna Maitland | Anna Maitland |
 Ingrid BoultingJane Maitland (as Ingrid Brett) | Jane Maitland (as Ingrid Brett) |
 Jill BennettLiz Eaves | Liz Eaves |
 Peter SallisHudson | Hudson |
| DDavid VallaJones | Jones |
 Eileen AtkinsShirley | Shirley |
 Gillian HillsJoy | Joy |
 Isabel DeanMrs. Gamsey | Mrs. Gamsey |
 John NormingtonMaples | Maples |
 Clare KellyMrs. Anderson | Mrs. Anderson |
 Lindsay AndersonBarrister | Barrister |
| HHilary HardimanMrs. Watson | Mrs. Watson |
 John SavidentMr. Watson | Mr. Watson |
 June BrownDinner Guest | Dinner Guest |
| NNorma ShebbeareDinner Guest | Dinner Guest |
| IIshaq BuxDinner Guest | Dinner Guest |
| JJames OttawayDinner Guest | Dinner Guest |
| PPenny BirdSheila | Sheila |
| AAlan SelwynPlain Clothes Detective | Plain Clothes Detective |
| MMartin GracePlain Clothes Detective (as Martin Grace Ryan) | Plain Clothes Detective (as Martin Grace Ryan) |
| RRonald ClarkeMan Outside Strip Club (Uncredited) | Man Outside Strip Club (Uncredited) |
| EEllis DaleClergyman (Uncredited) | Clergyman (Uncredited) |
 Ann LancasterDrinking Club Hostess (Uncredited) | Drinking Club Hostess (Uncredited) |
| EEllen MannHudson's Secretary (Uncredited) | Hudson's Secretary (Uncredited) |
| SStephen MartinPeter Maitland (Uncredited) | Peter Maitland (Uncredited) |
| RReg PetersPrivate Agent (Uncredited) | Private Agent (Uncredited) |
| JJoseph TregoninoCaretaker (Uncredited) | Caretaker (Uncredited) |
 Roy BeckPasserby (Uncredited) | Passerby (Uncredited) |
| HHarry FielderMan in Police Van (Uncredited) | Man in Police Van (Uncredited) |
