| Name | Character | Episodes |
|---|---|---|
| Marius Müller-Westernhagen | Self | 3 |
| Udo Lindenberg | Self | 3 |
| Patricia Kaas | Self | 2 |
| Katey Sagal | Self | 1 |
| Herbert Grönemeyer | Self | 1 |
| Mariah Carey | Self | 1 |
| Ronan Keating | Self | 1 |
| Patrick Bruel | Self | 1 |
| Cyndi Lauper | Self | 1 |
| Sheryl Crow | Self | 1 |
| Art Garfunkel | Self | 1 |
| Jon Bon Jovi | Self | 1 |
| Michael Bolton | Self | 1 |
| Gary Barlow | Self | 1 |
| Helge Schneider | Self | 1 |
| Peter Maffay | Self | 1 |
| Natalie Imbruglia | Self | 1 |
| Uwe Ochsenknecht | Self | 1 |
| Tina Turner | Self | 1 |
| Gary Moore | Self | 1 |
| Mark Knopfler | Self | 1 |
| Bonnie Raitt | Self | 1 |
| Stefan Raab | Self | 1 |
| Shania Twain | Self | 1 |
| Joe Cocker | Self | 1 |
| Bo Diddley | Self | 1 |
| Lisa Stansfield | Self | 1 |
| Rob Pilatus | Self | 1 |
| Sarah Brightman | Self | 1 |
| Steve Winwood | Self | 1 |
| Carnie Wilson | Self | 1 |
| Paul Young | Self | 1 |
| Curtis Stigers | Self | 1 |
| Marie Fredriksson | Self | 1 |
| Luther Vandross | Self | 1 |
| Patty Smyth | Self | 1 |
| Billy Ocean | Self | 1 |