| Name | Character | Episodes |
|---|---|---|
| Ellen Thomas | Liz | 40 |
| Gillian Bevan | Clare | 40 |
| Lloyd McGuire | Bob | 40 |
| Tamzin Malleson | Penny | 32 |
| Adrian Bower | Brian | 31 |
| Navin Chowdhry | Kurt | 31 |
| Vicky Hall | Lindsay | 22 |
| Andrew Lincoln | Simon | 18 |
| Nina Sosanya | Jenny | 18 |
| Raquel Cassidy | Susan | 18 |
| James Lance | Matt | 13 |
| Shaun Evans | JP | 10 |
| Mathew Horne | Ben | 9 |
| Lee Williams | Ewan | 9 |
| Jonas Armstrong | 6 | |
| Morven Christie | 1 | |
| James Corden | 1 | |
| James Corden | Jeremy | 1 |
| Zoe Telford | Maggie | 1 |
| Amanda Abbington | 1 | |
| Simon Chandler | Geoff | 1 |
| Maggie Ollerenshaw | Yvonne | 1 |
| Daniel Bliss | Danny | 1 |