| Name | Character | Episodes |
|---|---|---|
| Sophie Rundle | PC Joanna Marshall | 6 |
| Lorraine Ashbourne | Molly Marshall | 6 |
| Philip Glenister | Jack Radcliffe | 6 |
| Daniel Betts | DCI Roy | 6 |
| Jonas Armstrong | Lee Ellison | 6 |
| Nicholas Gleaves | Sergeant Phil Mackie | 6 |
| Matt Stokoe | Pat Holman | 6 |
| Jacqueline Boatswain | Sarah Mackie | 6 |
| Faye McKeever | Kelly | 5 |
| George Bukhari | Keith | 5 |
| James Quinn | Chris Robinson | 4 |
| Leo Flanagan | Finn | 3 |