•
Diana Kaarina as
Blair Willows / Princess Sophia, a waitress at "Cafe Gardania" who wins a scholarship to Princess Charm School. She is kind, clever, and diligent, but a little clumsy. It is later revealed that Blair was Princess Sophia, the long lost princess of Gardania, the true heir to the throne, and daughter of the late Queen Isabella and King Reginald, who was presumed to have died in a car crash alongside her family when she was just a baby, but escaped the accident and was found by Miss Willows. •
Morwenna Banks as Alexandra Privet, the
headmistress of Princess Charm School. First appearing as strict, she gives Blair private lessons to help her improve and is one of the few who believed in her. •
Nicole Oliver as Dame Devin, a vindictive school teacher at Princess Charm School, Delancy's mother, sister in law of Queen Isabella, sister of King Reginald, and aunt of Sophia. She had been selected to act as a lady royal, but no one picked her, not even Isabella, who would become her sister-in-law. She attempts to sabotage Blair at every corner, recognizing her as Isabella and Reginald's lost daughter, Sophia, who was the rightful heir to the throne. She had also arranged the deaths of the royal family so that Delancy could be queen. • Brittney Wilson as Delancy Devin, a student at Princess Charm School, Dame Devin's daughter, Queen Isabella and King Reginald's niece, Sophia's cousin, and the
heir presumptive of Gardania. Despite her initially spiteful attitude, she chooses to do the right thing when she learns that Blair is her cousin. •
Ali Liebert as Princess Hadley, an athletic student at Princess Charm School and one of Blair's roommates and best friends. Liebert also plays Princess Portia, Delancy's airhead companion. •
Shannon Chan-Kent as Princess Isla, a music-loving Japanese student at Princess Charm School and amateur DJ, and one of Blair's best friends and roommates. •
Vincent Tong as Prince Nicholas, a prince who attends the neighboring Prince Charming Academy and befriends Blair. • Madeleine Peters as Emily Willows, Blair's adoptive younger sister and Miss Willows' second adopted daughter who signed up Blair for the Princess Charm School lottery multiple times. • Ellen Kennedy as Miss Willows, Blair and Emily's adoptive mother on whose doorstep Blair was left as a baby after surviving the car crash that killed her birth parents. • Bethany Brown as Lady Royal Josette, one of Blair's classmates. •
Kazumi Evans as Harmony, Isla's personal princess assistant. • Special guest star: Miranda Ram-Nolte as Princess Miranda ==See also==