"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."
Sylvia Sidney
as Nancy Lane / Princess Catterina
Cary Grant
as Porter Madison III
Edward Arnold
as Richard M. Gresham
Henry Stephenson
as King Anatol XII
Vince Barnett
as Count Nicholeus
Edgar Norton
as Baron Passeria
Ray Walker
as Dan Kirk
Lucien Littlefield
as Parker
Robert McWade
as Managing Editor
George Baxter
as Donald Spottswood
Marguerite Namara
as Lady in Waiting
William Arnold
as City Editor (uncredited)
William Augustin
as Detective #2 (uncredited)
Allan Cavan
as Court Officer (uncredited)
Jean Chatburn
as Blonde (uncredited)
Oliver Cross
Edgar Dearing
as Tim - Policeman at Mrs. Schmidt's (uncredited)
Sayre Dearing
as Ceremonial Guest (uncredited)
Adolph Faylauer
as Reception Guest (uncredited)
Jean Fowler
as Guest (uncredited)
Dick Gordon
Sam Harris
Carey Harrison
Jack Holmes
as Radioman at Boat (uncredited)
Robert Homans
as Detective #1 (uncredited)
Thomas Monk
as Gresham's Butler (uncredited)
Edmund Mortimer
Dick Rush
as Police Sergeant (uncredited)
Loretta Russell
Scott Seaton
Phillips Smalley
Frederick Sullivan
as Doctor at Gresham's (uncredited)
Bruce Warren
as Spottswood's Friend (uncredited)
Eleanor Wesselhoeft
as Mrs. Schmidt (uncredited)
Marion Gering
Director
Edwin Justus Mayer
Adaptation
Preston Sturges
Screenplay
Sam Hellman
Frank Partos
Clarence Budington Kelland
Story
Wiard B. Ihnen
Art Direction
Arthur Jacobson
Assistant Director
Hans Dreier
Howard Jackson
Original Music Composer
Leon Shamroy
Director of Photography
Howard Greer
Costume Design
B.P. Schulberg
Producer
John Leipold
Jane Loring
Editor
Jack A. Goodrich
Sound
Emanuel Cohen
Executive Producer
Elwood Bredell
Still Photographer
Milton Bridenbecker
Assistant Camera
Daniel L. Fapp
Camera Operator
Eugene Joseff
Other
Karl Hajos
Additional Music
Rudolph G. Kopp
Harry Ruby
Adolph Zukor
Presenter