"On Your Toes" was adapted from a Broadway musical that opened at the Imperial Theater in New York on April 11, 1936 and ran for 315 performances. Ray Bolger starred in the original stage production. The musical was revived on Broadway in 1954 and 1983.
Several people in studio records/casting call lists as cast members did not appear or were not identifiable in the movie. These were (with their character names): Tommy Bupp (Boy) and Nat Carr, Billy Wayne, Bert Hanlon and Frank Orth (Vaudevillians)