Marilyn Belsby is the daughter of Genevieve Goodsmith and Thomas Belsby. She has a twin brother named Jack Belsby. Marilyn was born with magical powers that she had inherited from her angelic mother. Marilyn mostly uses it for fun and for her projects in the Academy. She is also quite funny, bubbly, happy, and gleeful; she also has 3 small sheep companions named Doug, Paul, and Kevin.