| Name | Character | Episodes |
|---|---|---|
| Ariyon Bakare | Marcus Johnson | 7 |
| Mark Addy | DS Sands | 7 |
| Anna Chancellor | Eleanor Davies | 7 |
| Mark Bonnar | Peter Mayhew | 7 |
| Kimberley Nixon | Alison | 7 |
| Aiysha Hart | Leila Sayyad | 7 |
| Dorian Lough | Detective Inspector Martin Heywood | 7 |
| Mark Strepan | Stefan Kowolski | 7 |
| Matt Bardock | Mark Craig | 7 |
| Ellise Chappell | Wendy Roberts | 2 |
| Dinita Gohil | PC Louise Tunstall | 2 |
| Nicola Bryant | Sophie Baxter | 1 |