Riverboat Online
| Series cast summary: | |||
 | Joe Bausch | - | Himself 1 episode, 2018 |
| Thomas Junker | - | Himself 1 episode, 2018 |
| Panagiota Petridou | - | Herself 1 episode, 2018 |
| Jörg Pilawa | - | Himself - Host 1 episode, 2018 |
| Carla Pohlink | - | Herself 1 episode, 2018 |
| Christina Schwanitz | - | Herself 1 episode, 2018 |
 | Stephanie Stumph | - | Herself - Host 1 episode, 2018 |
| Stanislaw Tschertschessow | - | Himself 1 episode, 2018 |
 | Collien Ulmen-Fernandes | - | Herself 1 episode, 2018 |