A new murder victim forces the team to consider whether a notorious serial killer has resurfaced after 20 years, or if they are dealing with a copycat.
| Name | Type | Role | |
|---|---|---|---|
| Dudi Appleton | Writer | ||
| Jim Keeble | Writer | ||
| Jayne Chard | Producer | ||
| Trevor Kaneswaran | Guest Star | DC Leo Naziri | |
| John Hannah | Guest Star | Dr Charles Beck | |
| Jasmine Stewart | Guest Star | Uniformed Officer | |
| Leo Staar | Guest Star | Calvin Dunn | |
| Anders Hayward | Guest Star | Lee Dunn | |
| Josette Simon | Guest Star | DCI Ford | |
| Laura White | Guest Star | Aysha Marsh | |
| Joanna Burnett | Guest Star | PC Patel | |
| Casper Knopf | Guest Star | Young Lee Dunn | |
| Charlie Beck | Guest Star | PC Spencer | |
| Emily John | Guest Star | Mia Dunn | |
| Max Myers | Director |