Thirty Day Princess

A European princess arrives in New York City to secure a much-needed loan for her country. She contracts the mumps, and an actress who looks exactly like her is hired to impersonate her.

• 
  Marion Gering
• 
  Arthur Jacobson

• 
  Sylvia Sidney
  Nancy Lane / Princess Catterina
• 
  Cary Grant
  Porter Madison III
• 
  Edward Arnold
  Richard M. Gresham
• 
  Henry Stephenson
  King Anatol XII
• 
  Vince Barnett
  Count Nicholeus
• 
  Edgar Norton
  Baron Passeria
• 
  Ray Walker
  Dan Kirk
• 
  Lucien Littlefield
  Parker
• 
  Robert McWade
  Managing Editor
• 
  George Baxter
  Donald Spottswood
• 
  Marguerite Namara
  Lady in Waiting
• 
  William Arnold
  City Editor (uncredited)
• 
  William Augustin
  Detective #2 (uncredited)
• 
  Allan Cavan
  Court Officer (uncredited)
• 
  Jean Chatburn
  Blonde (uncredited)
• 
  Oliver Cross
  Court Officer (uncredited)
• 
  Edgar Dearing
  Tim - Policeman at Mrs. Schmidt's (uncredited)
• 
  Sayre Dearing
  Ceremonial Guest (uncredited)
• 
  Adolph Faylauer
  Reception Guest (uncredited)
• 
  Jean Fowler
  Guest (uncredited)