The murder of a widow soon gives Frost a chance to prove his worth again, but the investigation only reveals an intriguing web of deceit, and it isn't until a forensic psychologist joins the team that they realise a serial killer is at work.
| Name | Type | Role | |
|---|---|---|---|
| David Gilman | Writer | ||
| Lia Williams | Guest Star | ||
| Adam Allfrey | Guest Star | ||
| David Jason | Guest Star | ||
| Philip Jackson | Guest Star | ||
| Mick Ford | Guest Star | ||
| David McKail | Guest Star | ||
| Jeff Rawle | Guest Star | ||
| Arthur White | Guest Star | ||
| Amanda Royle | Guest Star | ||
| Danny Webb | Guest Star | ||
| Julia St. John | Guest Star | ||
| Sara Stewart | Guest Star | ||
| Rosie Timpson | Guest Star | ||
| Julia Dalkin | Guest Star | ||
| James McKenna | Guest Star | ||
| John Lyons | Guest Star | ||
| Katie Gale | Guest Star | ||
| Cornelius Macarthy | Guest Star | ||
| Bruce Alexander | Guest Star | ||
| Paul Harrison | Director |