| Name | Character | Episodes |
|---|---|---|
| Benedict Wong | Interpreter | 4 |
| Christopher Eccleston | Drew Mackenzie | 4 |
| Ian McElhinney | Alex | 4 |
| David Harewood | Trevor | 4 |
| Zara Turner | Chris | 4 |
| Christine Tremarco | Fifth Former | 4 |
| Mark Womack | Archie | 4 |
| Peter Halliday | Shotgun | 4 |
| Sara Mair-Thomas | Mo | 4 |
| Peter Armitage | Norman | 4 |
| Lynda Steadman | Emma Mackenzie | 4 |
| Harmage Singh Kalirai | Mr Azzad | 4 |
| Pauline Black | Joanna | 4 |