Convent-bred to assume her position of nobility when the time comes, Princess Antoinette plays hooky from school one day to attend a theatrical performance. Here she meets a handsome young American, and it's love at first sight. Meanwhile, in the Princess' home country, the Prime Minister plots to quell a rebellion by arranging a marriage between Antoinette and the Grand Duke.
| Actor | Role |
|---|---|
 Greta NissenPrincess Antoinette | Princess Antoinette |
 Lionel BarrymoreCount Ferranzo | Count Ferranzo |
 Marc McDermottFranz Garletz | Franz Garletz |
 Carrie DaumeryDuchess | Duchess |
 Sôjin KamiyamaSecretary to Garletz | Secretary to Garletz |
 William Collier Jr.Clarke | Clarke |