- Country: USA
- Genres: Comedy, Music, Romance
- Release: 1938-05-06
- Director: Frank Tuttle
- Writers: O. Henry , Richard Connell , Jo Swerling , Dion Titheradge
- Language: English
- Stars: Bing Crosby (1903–1977) , Mary Carlisle , Beatrice Lillie , Andy Devine , Rufe Davis , Laura Hope Crews , Fred Keating , John Hamilton , Sterling Holloway , Henry Wadsworth
- Runtime: 80 min
- Awards: N/A
- AKA: Doctor Rhythm , Doctor Rhythm (United Kingdom) , Dr. Rytme (Denmark) , Доктор Ритм , Doctor Rhythm (United States of America) , Swing-doktorn (Sweden) , Doutor Remi-Bemol (Brazil) , Doutor Ré-Mi-Bemol (Brazil) , The Badge of Policeman O'Roon (United States of America)
- Plot: Dr. Bill Remsen pretends to be a policeman, and ends up being assigned to guard Judy Marlowe. Amazingly, he falls in love with her.
- IMDB:tt0030078
Dr. Rhythm Cast · · · ALL
Frank Tuttle
Director
Bing Crosby
(1903–1977)
Dr. Bill Remsen
Mary Carlisle
Judy Marlowe
Beatrice Lillie
Mrs. Lorelei Dodge-Blodgett
Andy Devine
Officer Lawrence O'Roon
Laura Hope Crews
Mrs. Minerva Twombling
Fred Keating
Chris LeRoy
John Hamilton
Insp. Bryce
Sterling Holloway
Luke (Ice-Cream Man)
Henry Wadsworth
Otis Eaton (The Drunk)
Franklin Pangborn
Mr. Stenchfield (Store Clerk)
Harold Minjir
Mr. Coldwater
William Austin
Mr. Martingale
Gino Corrado
Cazzatta
Harry Stubbs
Police Captain
Frank Elliott
Lorelei's Butler
Charles R. Moore
Tooter, the Chauffeur
Louis Armstrong
Trumpet Player
Charlene Arnold
Dancer (uncredited)
Dolores Casey
Nurse (uncredited)
Desmond Gallagher
Stage Manager (uncredited)
Alphonse Martell
Marvelous Marko (uncredited)
Allen Mathews
LeRoy's Henchman (uncredited)
Gretchen McCarthy
Dancer (uncredited)
Emory Parnell
Sgt. Olson (uncredited)
Robert Taylor
Band Member (uncredited)