A lorry is found with people locked inside, some dead. With the survivors refusing to speak, Nikki and the team must use their pathological and forensic skills to identify them.
| Name | Type | Role | |
|---|---|---|---|
| Rebecca Wojciechowski | Writer | ||
| Hector Abbott | Guest Star | Cal | |
| Muna Otaru | Guest Star | Sheila Shaw | |
| Lucy Black | Guest Star | Kerry Tooney | |
| Maria Forrester | Guest Star | Ketevan Gvazava | |
| Helene Maksoud | Guest Star | Ms Bashir | |
| Emilio Villa-Muhammad | Guest Star | Tommy Shaw | |
| Aaron Garland | Guest Star | Hero Teenager | |
| Gus Barry | Guest Star | Robbie Tooney | |
| Nadine Marshall | Guest Star | D.I. Sarah Torres | |
| Deya Du Preez | Guest Star | Elene | |
| Eoin Lynch | Guest Star | Marcus Tillman | |
| Jack Ryder | Guest Star | Frank Turner | |
| Sophia Carlo | Guest Star | Natia Beridze | |
| Nicola Sloane | Guest Star | Nurse Vi Froggat | |
| Maisie Ayres | Guest Star | Maeve Tooney | |
| Tommy Oldroyd | Guest Star | Damian | |
| Josh Coombes | Guest Star | Will Sturton | |
| Ranhee Yoo | Guest Star | Maya Park | |
| Kate Bracken | Guest Star | Lucy Stevens | |
| Max Myers | Director |