Cast
- Lilian Harvey as Prinzessin Eva
- Willy Fritsch as Bobby Fould
- Georg Alexander as Erzherzog Peter Ferdinand
- Julia Serda as Regierende Fürstin von Lauenburg
- Lotte Spira as Erzherzogin Melanie
- Karl Ludwig Diehl as Lord Chamberlain
- Hans Junkermann as Fould
- Viktor Schwannecke as Dr. Lemke
- Karl Etlinger as Dr. Popper
- Marianne Winkelstern