Many people who are 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): Louise Beavers (Aunt Sukey), Bert Roach (Major Domo), Oscar Apfel (Tompkins), Richard Powell (Doorman), Syd Saylor and Hooper Atchley (Agitators), Morgan Wallace (Slave Buyer), William Stack (W.R. Earle), Ward Bond (Officer) and Samuel S. Hinds (Commander). A modern source also lists Harry Holman (Auctioneer) and Harry Strang (Navigator) as cast members, but they were not seen either.
The following contains spoilers:The movie was inaccurate on two major points: Bow Timberlake actually committed suicide, and John Eaton was forced to resign from Jackson's cabinet.