| Name | Character | Episodes |
|---|---|---|
| Richard Gale | Sir Tarquin Stilgoe | 26 |
| James Hayter | Nathan | 13 |
| Peter Firth | Archie Weekes | 13 |
| Gorden Kaye | P.C. Joseph | 13 |
| Derek Benfield | Sgt. Brophy | 13 |
| Richard Gale | Miles Osborne | 13 |
| Cyril Luckham | Peter Weekes | 13 |
| Lila Kaye | Sarah Weekes | 13 |
| Murray Melvin | Gerald Meder | 13 |
| John Ringham | Mr. Jackson | 13 |
| David Bradley | Peter Weekes | 13 |
| Penelope Lee | Lucy Flaxton | 13 |
| Nicholas Pennell | Rev. Albemarle Dobson Partridge | 13 |
| Moultrie Kelsall | Andrew Flaxton | 13 |
| Hugh Cross | Archie Weekes | 13 |
| Terry Scully | Mr. Wilkinson | 13 |