| Name | Character | Episodes |
|---|---|---|
| Indira Varma | Nina Suresh | 8 |
| Michael Maloney | Dr Crowley | 8 |
| Anjli Mohindra | Meghan Waters | 8 |
| Robert Glenister | Bobby Day | 8 |
| Lesley Sharp | Lucy Cannonbury | 8 |
| Dino Fetscher | Alec Wayfield | 8 |
| Neil Stuke | Michael Niles | 8 |
| Christiane Paul | Linda Felber | 8 |
| William Ash | Henry Appley | 5 |