The Lindenhof School is expecting a busload of proper young English ladies as exchange students. The shock is great when the students turn out to be teenage boys! But while Mademoiselle Bertoux is delighted to stage “Romeo and Juliet” with real boys, both Hanni and her sister Nanni fall for their “Romeo,” Clyde.
| Actor | Role |
|---|---|
| SSophia MünsterHanni Sullivan | Hanni Sullivan |
| JJana MünsterNanni Sullivan | Nanni Sullivan |
 Suzanne von BorsodyFrau Mägerlein | Frau Mägerlein |
 Katharina ThalbachMademoiselle Bertoux | Mademoiselle Bertoux |
 Hannelore ElsnerDirektorin Frau Theobald | Direktorin Frau Theobald |
 Barbara SchönebergerDaphne Diehl | Daphne Diehl |
 Justus von DohnányiMister Gordon | Mister Gordon |
 Konstantin WeckerProfessor Konrad Kästner | Professor Konrad Kästner |
 Nele GuderianDaniela | Daniela |
 Luisa SpanielLilly | Lilly |
 Aleen Jana KötterErika | Erika |
 Leopold KlieeisenClyde | Clyde |
| LLiam van EnschotSeth | Seth |
| CCarlos KnöpfelWuschel | Wuschel |
| MMichelle HeikJette | Jette |
| IIsabella PasimeniIsabella | Isabella |
| JJohann FlorinJoe | Joe |
 Langston UibelInternatsschüler (uncredited) | Internatsschüler (uncredited) |