| Name | Character | Episodes |
|---|---|---|
| Olivia Pascal | Olivia | 29 |
| Herbert Fux | Herbert | 29 |
| Milva | Self | 1 |
| Eartha Kitt | Self | 1 |
| Cyndi Lauper | Self | 1 |
| Marius Müller-Westernhagen | Self | 1 |
| Bonnie Tyler | Self | 1 |
| Lulu | Self | 1 |
| Udo Lindenberg | Self | 1 |
| Demis Roussos | Self | 1 |
| Emmylou Harris | Self | 1 |
| Kate Bush | Self | 1 |
| Nik Kershaw | Self | 1 |
| Mike Oldfield | Self | 1 |