| Name | Character | Episodes |
|---|---|---|
| Peter Tatchell | Self | 3 |
| Nina Wadia | Self | 2 |
| Richard Dawkins | Self | 2 |
| Benjamin Zephaniah | Self | 2 |
| Kaye Adams | Self | 2 |
| Ann Widdecombe | Self | 2 |
| Emma Restall Orr | Self | 2 |
| Katie Melua | Self | 1 |
| Alastair Campbell | Self | 1 |
| Myleene Klass | Self | 1 |
| Gloria Hunniford | Self | 1 |
| John Barrowman | Self | 1 |
| Toyah Willcox | Self | 1 |
| Helen Lederer | Self | 1 |
| Christopher Biggins | Self | 1 |
| Jordan Stephens | Self | 1 |
| Val McDermid | Self | 1 |
| Phil Redmond | Self | 1 |
| Jeremy Paxman | Self | 1 |
| Germaine Greer | Self | 1 |
| Alice Roberts | Self | 1 |
| Angela Rippon | Self | 1 |
| Helen Czerski | Self | 1 |
| Minette Walters | Self | 1 |
| Calum Best | Self | 1 |
| Amrou Al-Kadhi | Self | 1 |
| P. D. James | Self | 1 |
| Katherine Jenkins | Self | 1 |