| Name | Character | Episodes |
|---|---|---|
| Richard Pearson | 13 | |
| Gary Raymond | 13 | |
| Barry Jones | 13 | |
| Alex Scott | 12 | |
| Tom Watson | 12 | |
| Rosalind Knight | 10 | |
| Ilona Rodgers | 9 | |
| Blake Butler | 5 | |
| Peter Craze | 4 | |
| Vernon Dobtcheff | 3 | |
| Kathleen Harrison | 3 | |
| Michael Bilton | 2 | |
| John Bryans | 2 | |
| Janet Henfrey | 2 | |
| Hugh Cross | 2 | |
| Trevor Thomas | 1 |