Two twin brothers working in a Vienna fair and who are both gifted for singing meet different luck both in love and their careers.
| Actor | Role |
|---|---|
 Joseph SchmidtBeppo / Tonio | Beppo / Tonio |
 Felix BressartMax Kaspar | Max Kaspar |
 Otto WallburgPaul Kaspar | Paul Kaspar |
 Hans HoltNot listed | Not listed |
 Karl SkraupNot listed | Not listed |
 Karl ForestNot listed | Not listed |
| LLisl KinastNot listed | Not listed |
 Lizzi NatzlerNot listed | Not listed |