| Name | Character | Episodes |
|---|---|---|
| Sophie Rundle | Laura Simmonds | 6 |
| Laia Costa | Mariona Cabell | 6 |
| Danny Sapani | Colin Sutherland | 6 |
| Steven Cree | Sam Henderson | 6 |
| Isak Férriz | Inspector Castells | 6 |
| Dylan Brady | Carl Hyndley | 6 |
| Tamsin Topolski | Izzy Miller | 1 |
| Bobby Lockwood | Eddie Hardgreaves | 1 |