| Name | Character | Episodes |
|---|---|---|
| Jimmy Carr | Himself - Host | 21 |
| Katherine Ryan | Herself - Judge | 21 |
| Jonathan Ross | Himself - Judge | 10 |
| Russell Brand | Himself - Judge | 6 |
| Dane Baptiste | Self | 3 |
| Phil Wang | Self | 3 |
| Daniel Sloss | Self | 2 |
| Tom Allen | Self | 2 |
| Fern Brady | Self | 2 |
| Alex Brooker | Self | 2 |
| Joel Dommett | Self | 2 |
| Alex Edelman | Self | 2 |
| Richard Herring | Self | 1 |
| Rosie Jones | Self | 1 |
| Richard Ayoade | Self - Guest Judge | 1 |
| Jessie Cave | Self | 1 |
| Johnny Vegas | Self | 1 |
| Desiree Burch | Self | 1 |
| Rose Matafeo | Self | 1 |
| Sara Pascoe | Self - Guest Judge | 1 |
| Lou Sanders | Self | 1 |
| Tom Rosenthal | Self | 1 |
| Nigel Ng | Self | 1 |
| Ed Gamble | Self | 1 |
| Jordan Stephens | Self | 1 |
| Jayde Adams | Self | 1 |
| Paul Chowdhry | Self | 1 |
| Catherine Bohart | Self | 1 |
| Mark Steel | Self | 1 |
| Felicity Ward | Self | 1 |
| Lloyd Griffith | Self | 1 |
| Rhys Nicholson | Self | 1 |
| Amrou Al-Kadhi | Self | 1 |
| Baga Chipz | Self | 1 |
| Chris Ramsey | Self | 1 |