In lieu of a cast list, the opening credits specify "with the talents of" followed by nine names: Ilene Woods, Eleanor Audley, Verna Felton, Claire Du Brey, Rhoda Williams, James MacDonald, Helene Stanley, Luis Van Rooten, and Don Barclay. However, only seven of these persons provided voices for the animated characters (according to studio records) and are listed in the cast. Both Stanley and Du Brey were live action models to help the artists animate the humans. They were placed in the miscellaneous section.