Flora, Fauna, and Merryweather from Sleeping Beauty (voiced by Barbara Dirikson, Russi Taylor, and Tress MacNeille) - Three good fairies who are the headmistresses of Royal Prep, the school that Sofia and her peers attend.
Merlin from The Sword in the Stone (voiced by Jeff Bennett) - A revered wizard who is referenced numerous times in the series, most often by his admirer Cedric.