Bill's girlfriend Lore is an art student in Berlin. Since her professor doesn't think much of painting women, she exchanges a genuine Raphael painting in a gallery for a copy made by her. In a spectacular theft, the copy is stolen. Detective Keller suspects Bill and Lore. But Bill, who is a talented quick-change artist, keeps escaping arrest by constantly altering his appearance.
| Actor | Role |
|---|---|
 Hans OttoBill Breithen | Bill Breithen |
 Edith EdwardsLore Falk | Lore Falk |
 Friedl HaerlinRoselle | Roselle |
 Max AdalbertMurrjahn, Museumsdiener | Murrjahn, Museumsdiener |
 Hermann BlaßLewinsohn | Lewinsohn |
| PPaul HenckelsProfessor Wrede | Professor Wrede |
 Fritz OdemarHempel | Hempel |
 Hermann VallentinWirt | Wirt |
 Paul RehkopfMuseumsführer | Museumsführer |
| OOtto LaubingerBellamico | Bellamico |
| FFrigga BrautFräulein Tausendschön | Fräulein Tausendschön |
| JJulius E. HerrmannKommissar Knägge | Kommissar Knägge |
| HHeinz GlahnDr. Steffensohn | Dr. Steffensohn |
| EErika UnruhLehrerin | Lehrerin |
| OOlivia FriedCölestine | Cölestine |
| TTheodor ThonyFranzose | Franzose |
| EErnst PröcklReporter | Reporter |
| EErich KestinFotograf | Fotograf |
| MMargitta ZonewaZigeunerin | Zigeunerin |
| FFerdinand HartWachtmeister Enke | Wachtmeister Enke |
| MMolly OndeynaNot listed | Not listed |