When an ex-convict is brutally murdered, the Lyell team is introduced to a forensic psychologist who works closely with those released from prison on life licence.
| Name | Type | Role | |
|---|---|---|---|
| Chris Hurford | Writer | ||
| Tom Butterworth | Writer | ||
| Toby Wharton | Guest Star | Joe Sherringham | |
| Karen Meagher | Guest Star | Diane Blackburn | |
| Richard Sutton | Guest Star | DI Jason Snow | |
| Stephen Kennedy | Guest Star | Ted Blake | |
| Lyndsey Marshal | Guest Star | Sasha Blackburn | |
| Jane Leaney | Guest Star | Mandy Bright | |
| Shaun Parkes | Guest Star | Bennet Walker | |
| Niamh Cusack | Guest Star | Sylvie Blake | |
| Jude Monk McGowan | Guest Star | David Sellars | |
| David Anderson | Guest Star | Drunk Customer | |
| Robert Whitelock | Guest Star | Oliver Bright | |
| Tom Padley | Guest Star | Connor Blake | |
| Jay Simpson | Guest Star | Ryan White | |
| Oliver Gatz | Guest Star | Duty Doctor | |
| Liam Bewley | Guest Star | Café Owner | |
| Harrison Stagg | Guest Star | Max | |
| Lloyd Owen | Guest Star | DS Mitchell | |
| Joshua Blake | Guest Star | Reporter | |
| Kyle Soller | Guest Star | Marcus Chadwell | |
| Mark Everest | Director |