| Name | Character | Episodes |
|---|---|---|
| Udo Jürgens | Self | 3 |
| Peter Maffay | Self | 2 |
| Milva | Self | 1 |
| Chris De Burgh | Self | 1 |
| Engelbert Humperdinck | Self | 1 |
| Anni-Frid Lyngstad | Self | 1 |
| Agnetha Fältskog | Self | 1 |
| Irene Cara | Self | 1 |
| Benny Andersson | Self | 1 |
| Richard Clayderman | Self | 1 |
| Heino | Self | 1 |
| Tony Christie | Self | 1 |
| Volker Lechtenbrink | Self | 1 |