Queen Isabella is a deceased character in Barbie: Princess Charm School . But she never had an appearance except through portraits.She is the biological mother of Blair Willows. After attending the Princess Charm School and passing the semester, Isabella was crowned the princess of Gardania, and Gardania's magical crown glowed on her head, as she was the true heir. Her sister-in-law Dame Devin, who was a lottery winner, wanted to be Isabella's lady royal, but Isabella did not pick her. This led to Dame Devin holding a grudge against Isabella.
Diana Kaarina as Blair Willows/Princess Sophia - the poor waitress of "Cafe Gardania" who wins a scholarship to Princess Charm School. She is kind, clever and clumsy, yet diligent. She loves her family and wants to support them. It is later revealed that she is Princess Sophia, the long lost princess of Gardania.
Morwenna Banks as Alexandra Privet - the headmistress of Princess Charm School.
Nicole Oliver as Dame Devin - a vindictive school teacher at Princess Charm School, who is also the mother of Delancy, the former heiress presumptive to the Gardanian Throne. She is...