| Name | Character | Episodes |
|---|---|---|
| Adam Lambert | Themselves - Judge | 1 |
| Adam Lambert | Judge | 1 |
| Alesha Dixon | Themselves - Judge | 1 |
| Alesha Dixon | Judge | 1 |
| Jonathan Ross | Themselves - Judge | 1 |
| Jonathan Ross | Judge | 1 |
| will.i.am | Themselves - Judge | 1 |
| will.i.am | Judge | 1 |
| Roman Kemp | Host | 1 |