Mr. Toad, Cinderella, Horace Horsecollar and the Cheshire Cat all make cameos during Mickey's song.
Mickey's enemy in this cartoon is the Evil Witch from 'Snow White.' She is also the bad guy in the popular "Castle of Illusion" video game, though in that case she is named Grizabella.
The song "Someday My Prince Will Come" plays during the grand finale.