| Name | Character | Episodes |
|---|---|---|
| Ozzy Osbourne | Self | 1 |
| Herbert Grönemeyer | Self | 1 |
| Katy Perry | Self | 1 |
| Christina Aguilera | Self | 1 |
| Olivia Newton-John | Self | 1 |
| Seal | Self | 1 |
| Bono | Self | 1 |
| Kim Wilde | Self | 1 |
| Akon | Self | 1 |
| Nina Hagen | Self | 1 |
| Kylie Minogue | Self | 1 |
| Max Raabe | Self | 1 |
| Slash | Self | 1 |
| Klaus Meine | Self | 1 |
| Pink | Self | 1 |