"Are you crazy?" "Nope, Down syndrome." Jakob knows his problem and can live well with it. His older brother Julian, however, he does not care about the Mongo. Even after the death of her mother Anna, does not think Julian cares about his younger brother. It's the other way around: Jacob helps him overcome the grief over Anna's death.
| Actor | Role |
|---|---|
 Martin FeifelJulian | Julian |
 Cornelia FroboessAnna | Anna |
 Marion BreckwoldtKristin | Kristin |
 Gilbert von SohlernNot listed | Not listed |
 Horst SachtlebenNot listed | Not listed |
| MMichael WittsackJakob | Jakob |
| JJule GartzkeMascha | Mascha |
| MMarie BardischewskiMrs. Kreuzinger | Mrs. Kreuzinger |
 Timo DierkesNot listed | Not listed |
| CCarolin EngelNot listed | Not listed |
| UUrsula GottwaldSüsse | Süsse |
| SStefan HunoldNot listed | Not listed |
 Gabrielle OdinisNot listed | Not listed |
 Nele Winkler(as Nene Winkler) | (as Nene Winkler) |
| WWalter WörleNot listed | Not listed |