| Name | Character | Episodes |
|---|---|---|
| Alex Jones | Self - Presenter | 8 |
| Claudia Winkleman | Self - Presenter | 4 |
| Jo Brand | Self - Judge | 2 |
| Noel Fielding | Self - Contestant | 2 |
| Greg Davies | Self - Judge | 2 |
| Michael McIntyre | Self | 2 |
| Frank Skinner | Self - Judge | 2 |
| Antony Cotton | Self - Contestant | 2 |
| Lee Mack | Self - Judge | 2 |
| Natalie Cassidy | Self - Contestant | 2 |
| Tim Vine | Self - Contestant | 2 |
| Leigh Francis | Keith Lemon - Judge | 2 |
| Bruno Mars | Self - Performer | 1 |
| Taylor Swift | Self - Performer | 1 |
| Justin Bieber | Self - Performer | 1 |
| Paloma Faith | Self - Performer | 1 |
| Jo Brand | Self | 1 |
| Ricky Whittle | Self | 1 |
| Katherine Ryan | Self - Contestant | 1 |
| Rob Brydon | Self | 1 |
| Toyah Willcox | Self - Contestant | 1 |
| Alesha Dixon | Self | 1 |
| Nicole Scherzinger | Self - Performer | 1 |
| Jack Whitehall | Self - Judge | 1 |
| Rebecca Front | Self - Contestant | 1 |
| Miranda Hart | Self - Judge | 1 |
| Denise Van Outen | Self | 1 |
| Tom Jones | Self | 1 |
| Robert Webb | Self | 1 |
| Adrian Edmondson | Self - Contestant | 1 |
| Christopher Biggins | Self | 1 |
| Bradley Walsh | Self - Judge | 1 |
| Ed Byrne | Self - Contestant | 1 |
| Emma Bunton | Self | 1 |
| Ruth Jones | Self | 1 |
| Mel Giedroyc | Self - Judge | 1 |
| Lulu | Self - Contestant | 1 |
| Paul O'Grady | Self | 1 |
| Cee Lo Green | Self - Performer | 1 |
| Andi Osho | Self - Contestant | 1 |
| Tim Vincent | Self | 1 |
| Marcus Brigstocke | Self - Contestant | 1 |
| Rufus Hound | Self - Judge | 1 |
| Les Dennis | Self | 1 |
| Lisa Maxwell | Self | 1 |
| Patrick Robinson | Self | 1 |
| Ben Drew | Self - Performer | 1 |
| Jon Culshaw | Self - Contestant | 1 |
| Cliff Parisi | Self | 1 |
| Kimberly Wyatt | Self - Performer | 1 |
| Vanessa Feltz | Self - Contestant | 1 |
| Kimberley Walsh | Self - Performer | 1 |
| Nicki Chapman | Self | 1 |
| Clare Grogan | Self - Contestant | 1 |
| Chesney Hawkes | Self - Contestant | 1 |
| Helen Skelton | Self | 1 |
| Jason Manford | Self - Judge | 1 |
| Leigh Francis | Self | 1 |
| Peter Duncan | Self | 1 |
| Angela Rippon | Self | 1 |
| Keith Duffy | Self - Contestant | 1 |
| Tameka Empson | Self - Judge | 1 |
| Ricky Hatton | Self - Contestant | 1 |
| Caroline Flack | Self - Contestant | 1 |
| Peter Purves | Self | 1 |
| James Thornton | Self - Contestant | 1 |
| Ricky Groves | Self - Contestant | 1 |
| Mark Curry | Self | 1 |
| Dominique Jackson | Self | 1 |
| Dara Ó Briain | Self | 1 |
| Louie Spence | Self - Judge | 1 |