A third death helps Sam realise that the motive behind the murders of the Davies brothers was not racial - but revenge.
| Name | Type | Role | |
|---|---|---|---|
| Tony McHale | Writer | ||
| Joseph Bennett | Guest Star | Carl Martin | |
| David Blair | Guest Star | Jonathan Rudd | |
| Richard Todd | Guest Star | Professor Newman | |
| Naomi Allisstone | Guest Star | Jan Martin | |
| Robert Arden | Guest Star | Alex Wein | |
| Ace Bhatti | Guest Star | DCI Ranjeet Naval | |
| James Thornton | Guest Star | Douglas | |
| Ewan Stewart | Guest Star | DS Chris Moorhouse | |
| Jane Cunliffe | Guest Star | Carol | |
| Andrew Sachs | Guest Star | Josef Horowitz | |
| Mark Homer | Guest Star | DC Cliff Armstrong | |
| Trevor Thomas | Guest Star | Bill | |
| Suzanne Bertish | Guest Star | Ewa Horowitz | |
| Coky Giedroyc | Director |