The already successful tenor Mattei is discovered after he already retired into private life. Der Wiener Staatsoper place a significant part in this musical comedy drama.
| Actor | Role |
|---|---|
 S.Z. SakallMichael | Michael |
| AAlfred PiccaverGennaro Mattei | Gennaro Mattei |
 Walter RillaLeonard | Leonard |
| SSusi LannerMitzi | Mitzi |
 Hermine SterlerLucena | Lucena |
 John MylongNot listed | Not listed |
 Annie RosarNot listed | Not listed |
| EEugen NeufeldNot listed | Not listed |
 Nora GregorEvelyn Norman | Evelyn Norman |
 Teddy BillNot listed | Not listed |
| EEugen JensenNot listed | Not listed |
| RRobert ValbergNot listed | Not listed |