Teen brother and sister who rarely get to see each other fall in love with one another one summer.
| Actor | Role |
|---|---|
 Florian HeidenMattis Lomberg | Mattis Lomberg |
 Alexandra SchalaudekMieke Lomberg | Mieke Lomberg |
 August ZirnerJan Lomberg | Jan Lomberg |
 Christian WunderlichFelix | Felix |
 Friederike WagnerSimona, Jan's girl friend | Simona, Jan's girl friend |
 Vanessa JungLena | Lena |
| SStefan BornSebastian Höfler | Sebastian Höfler |