Richard lives apart from his wife. He is unemployed. His life is really not running smoothly right now. Rather by chance, he gets into conversation with the director of his daughter's school, who is desperately looking for teachers - which gives Richard an idea. He is a mathematician. And after all, everyone can become a teacher!
| Actor | Role |
|---|---|
 Christoph Maria HerbstRichard Glossat | Richard Glossat |
 Brigitte ZehAnke Glossat | Anke Glossat |
 Kai LentrodtChristoph Geiger | Christoph Geiger |
| VVirginia LeithäuserIsabell Glossat | Isabell Glossat |
 Ramona Kunze-LibnowBeate Klimm | Beate Klimm |
 Alexander HörbeMartin Sorokin | Martin Sorokin |
 Florian AppeliusJohannes Rauch | Johannes Rauch |
 Michael HanemannFriedrich Pizek | Friedrich Pizek |
 Tua El-FawwalFiliz Ünder | Filiz Ünder |
 Riccardo CampioneLuis Manfeld | Luis Manfeld |
 Malene BeckerYvette | Yvette |
| LLeo SchinnViktor | Viktor |
 Luna SchallerLola | Lola |
| MMascha PaulHenriette | Henriette |
 Flora ThiemannKim | Kim |
 Carlotta BähreLuise | Luise |
 Anne-Kathrin GummichUlrike Hirsch | Ulrike Hirsch |
 Banafshe HourmazdiDilek Günes | Dilek Günes |
| TThi Le Thanh HoTanja Erb | Tanja Erb |
| MMara LukaMarie Breuning | Marie Breuning |
| BBärbel SchwarzSandra Fischer | Sandra Fischer |
 Mürtüz YolcuYildiray Ünder | Yildiray Ünder |
 Sema PoyrazPinar Ünder | Pinar Ünder |
 Jörg WestphalDr. Bach | Dr. Bach |
| SSebastian BeckerGert Manfeld | Gert Manfeld |