| Name | Character | Episodes |
|---|---|---|
| Lee Ingleby | Paul Hughes | 18 |
| Morven Christie | Alison Hughes | 18 |
| Molly Wright | Rebecca Hughes | 18 |
| Christopher Eccleston | Maurice Scott | 6 |
| Ralf Little | Stuart | 6 |
| Lisa Millett | Maggie White | 6 |
| Vinette Robinson | Nicola Daniels | 6 |
| Daniel Cerqueira | Dr Graves | 6 |
| Pooky Quesnel | Louise Wilson | 6 |
| Greg McHugh | Eddie Scott | 6 |
| Julia Krynke | Maya Petrenko | 6 |
| George Bukhari | Terry | 6 |
| Sarah Gordy | Katie | 4 |
| Rhashan Stone | 1 | |
| Mina Anwar | 1 |