Princess is destined to marry the Emperor, until her sister steps in.
| Actor | Role |
|---|---|
 Grace MoorePrincess Elizabeth / Cissy | Princess Elizabeth / Cissy |
 Franchot ToneEmperor Franz Josef | Emperor Franz Josef |
 Walter ConnollyMaximilian, Duke of Bavaria | Maximilian, Duke of Bavaria |
 Raymond WalburnCol. Von Kempen | Col. Von Kempen |
 Elisabeth RisdonGrand Duchess Sofia | Grand Duchess Sofia |
 Nana BryantLouise | Louise |
 Victor JoryCapt. Palfi | Capt. Palfi |
 Frieda InescortPrincess Helena | Princess Helena |
 Thurston HallMajor | Major |
 Herman BingPretzelberger | Pretzelberger |
 George HassellHerlicka | Herlicka |
 Johnny ArthurChief of the Secret Police | Chief of the Secret Police |
 Gwen VerdonSpecialty Ballerina (uncredited) | Specialty Ballerina (uncredited) |
| AAda Mae MooreSnake Charmer | Snake Charmer |
| JJosephine McKimMermaid | Mermaid |
 Eve SouthernGypsy Fortune Teller (uncredited) | Gypsy Fortune Teller (uncredited) |
 Maria RivaGirl Playing Violin (uncredited) | Girl Playing Violin (uncredited) |