| Name | Character | Episodes |
|---|---|---|
| Michael Coles | Sam Hunter | 2 |
| Bryan Marshall | 1 | |
| John Thaw | Det. Insp. Jack Regan | 1 |
| Tom Bell | Ray Carter | 1 |
| Kika Markham | Marnie | 1 |
| Dennis Waterman | Det. Sgt. George Carter | 1 |
| Rachel Kempson | 1 | |
| George Sewell | 1 | |
| Philippe Léotard | Jean Cacques Brialy | 1 |
| Elliott Sullivan | Bert Toomey | 1 |