| Name | Character | Episodes |
|---|---|---|
| Vicco von Bülow | Voice (Wum) | 31 |
| Rex Gildo | Self | 3 |
| Udo Jürgens | Self | 2 |
| Jürgen Feindt | Self | 2 |
| Milva | Self | 1 |
| Dan Blocker | Self | 1 |
| René Kollo | Self | 1 |
| Daliah Lavi | Self | 1 |
| Johnny Cash | Self | 1 |
| Esther Ofarim | Self | 1 |
| Peter Kraus | Self | 1 |
| Anneliese Rothenberger | Self | 1 |