Alf poses as a criminal as part of an undercover operation, but his covert actions only reveal startling information about Miller's ethical beliefs. David eyes up Peggy's room when she applies to be Lord Ashfordly's housekeeper but both are left disappointed when the interview is a complete failure.
| Name | Type | Role | |
|---|---|---|---|
| Alan Ready | Actor | Bates | |
| Rupert Vansittart | Actor | Lord Ashfordly | |
| William Simons | Actor | Alf Ventress | |
| David Lonsdale | Actor | David Stockwell | |
| Tricia Penrose | Actor | Gina Ward | |
| Francis Magee | Actor | Ken Rawson | |
| Peter Benson | Actor | Bernie Scripps | |
| Daphne Oxenford | Actor | Enid Bakewell | |
| Gwen Taylor | Actor | Peggy Armstrong | |
| Jonathan Kerrigan | Actor | PC Rob Walker | |
| Vanessa Hehir | Actor | Rosie Cartright | |
| John Duttine | Actor | Sergeant George Miller | |
| Mark Jordon | Actor | PC Phil Bellamy | |
| Elizabeth Bennett | Actor | Joyce Jowett | |
| Derek Fowlds | Actor | Oscar Blaketon | |
| Sophie Ward | Actor | Dr Helen Trent | |
| Steven Blakeley | Actor | PC Geoff Younger |