Ludvig Brandstrup is a radio announcer and performs with great experience in front of the microphone. But the director is not exactly taking care of his duties; he has forgotten to inform the artists who will assist with the broadcast. This forgetfulness is a very serious blunder. On top of that, an award-winning radio play, "Where is Jensen?", is to be broadcast, and now the actors are missing. Brandstrup is desperate and distraught, until he gets the bright idea to play all the roles himself.
| Actor | Role |
|---|---|
 Ludvig BrandstrupNot listed | Not listed |
 Gertrud JensenNot listed | Not listed |
 Ib SchønbergNot listed | Not listed |
 Gösta EkmanNot listed | Not listed |
 Louis ArmstrongNot listed | Not listed |
| TTeddy BrownNot listed | Not listed |
 Roy FoxNot listed | Not listed |
 Erik TuxenNot listed | Not listed |
| JJimmy JadeNot listed | Not listed |
| WWilsonNot listed | Not listed |
| WWilson, Keppel and BettyNot listed | Not listed |
| RRigmor ReumertNot listed | Not listed |
| JJon IversenNot listed | Not listed |
 Maria GarlandNot listed | Not listed |
 Arthur JensenNot listed | Not listed |
| PPalle ReenbergNot listed | Not listed |
 Petrine SonneNot listed | Not listed |
| VVera LindstrømNot listed | Not listed |
| BBørge Munch PetersenNot listed | Not listed |
 Ellen JansøNot listed | Not listed |
 Ejner FederspielNot listed | Not listed |
| CChristian EngelstoftNot listed | Not listed |
 Aage FossNot listed | Not listed |