| Name | Character | Episodes |
|---|---|---|
| Martin Freeman | Steve Fulcher | 6 |
| Imelda Staunton | Karen Edwards | 6 |
| Siobhan Finneran | Elaine Pickford | 6 |
| Owain Arthur | DI Sean Memory | 6 |
| Kate Ashfield | Yvonne Fulcher | 6 |
| Ian Puleston-Davies | Mick O'Callaghan | 6 |
| Joe Absolom | Christopher Halliwell | 6 |
| Daniel Betts | Mike Veale | 6 |
| Derek Riddell | Pete | 6 |
| Charlie Cooper | Kevin Reape | 6 |
| Jake Davies | Liam O'Callaghan | 6 |
| Matthew Duckett | Receptionist | 1 |