The mystery deepens as Jack gets closer to finding the other missing boy.
| Name | Type | Role | |
|---|---|---|---|
| Ray Brooking | Writer | ||
| Niall Fraser | Director | ||
| Nick Cavaliere | Actor | Salvatore Angeletti | |
| John Bowler | Actor | Chief Superintendent Coulson | |
| Justine Michelle Cain | Actor | Cathy Sinclair | |
| Gerard Horan | Actor | Desk Sgt Peter Pratt | |
| Clare Burt | Actor | Mrs Buckley | |
| Marianne Oldham | Actor | Deborah Burns | |
| Chris Overton | Actor | PC Eddie Coulson | |
| Jan Harvey | Actor | Helena Cole | |
| Kieran Bew | Actor | DI Jack Burns | |
| Richard Huw | Actor | Reverend Buckley | |
| Jonty Stephens | Actor | Joe Dawson | |
| John Light | Actor | Chief Inspector Roger Nelson | |
| Jennifer Bea | Actor | Lisa Harris | |
| Tom McLarney | Actor | Sam Pratt | |
| Kerry Washington | Actor | Bessie Cradditch | |
| Philip Hill-Pearson | Actor | Frank Marshall | |
| Charlie De'Ath | Actor | Sgt Sidney Fenton | |
| Sarah Moyle | Actor | Miss Rosemary Lawrence | |
| Daniel Ormerod | Actor | Johnny Harris | |
| Alexandra Wilson | Actor | Jessica Mundy | |
| Kathryn Hunt | Actor | Brenda Dawson | |
| Jennie Jacques | Actor | WPC Gina Dawson | |
| Jack Derges | Actor | Bill Pearson |