| Name | Character | Episodes |
|---|---|---|
| MyAnna Buring | DI Helen Weeks | 4 |
| Tim McInnerny | Frank Linnell | 4 |
| Ashley Walters | DI Tim Cornish | 4 |
| Johann Myers | Jacky Snooks | 4 |
| Sinead Matthews | Paula Days | 4 |
| Pearce Quigley | Trevor Hare | 4 |
| Kieran O'Brien | DS Gary Kenny | 4 |
| Clive Wood | Robert Weeks | 4 |
| Ben Batt | DI Paul Hopkins | 4 |
| Joey Batey | Shelley | 4 |
| David Leon | DI Adam Perrin | 4 |
| Lee Boardman | Kevin Sherwood | 4 |
| Georgia Tennant | Jenny | 4 |
| Jordan Bolger | "Easy" Ezra Dennison | 4 |
| Stewart Scudamore | Syd | 4 |
| Louise Delamere | Sarah Rushton | 4 |
| Emma Fryer | Linda Bates | 4 |
| Robert Morgan | Patrick Rushton | 4 |
| Conor Mullen | "Wave" Errol Anderton | 4 |
| Aqib Khan | "Mikey" Meekaaeel Qureshi | 4 |
| Flo Wilson | Magistrate | 4 |
| Alicya Eyo | Davina | 4 |
| Liam Ainsworth | PC William Gallagher | 4 |
| Michael Lambourne | Leather Jacket Man | 4 |
| Alice May Feetham | Rory Harcross | 4 |
| Jamie Sives | DCI Jack Gosforth | 4 |
| Matt King | Phil Hendricks | 4 |
| Alison Burrows | Katie | 4 |
| Jessica Gunning | DC Sophie Carson | 4 |