| Name | Character | Episodes |
|---|---|---|
| Keith Allen | Dexter | 18 |
| Phaldut Sharma | Rajiv | 18 |
| David Ross | Baz | 18 |
| Philip Glenister | Phil | 18 |
| Pippa Guard | Reen | 18 |
| Robert Daws | Sam | 18 |
| Ricci Harnett | Marlon | 18 |
| Terence Maynard | André | 15 |
| Helen Grace | Chrissie | 15 |
| Jude Akuwudike | Henry | 15 |
| Chris Larkin | Cambridge | 15 |
| Barbara Durkin | Tina | 15 |
| John Thomson | Barry | 8 |
| Barry Foster | Pieter Eugene | 7 |
| Pippa Haywood | Helen Jackson | 7 |
| Edna Doré | May | 3 |