Addy, also known as Addison, is a girl who Lisa befriended. They met at the library and shared an interest in books.
Addy invites Lisa to her birthday party, revealing she owns horses. However, after Lisa is mocked by her three other guests (Sloan, Tessa Rose and Bella-Ella) she reveals that she had previously been mocked and invited Lisa to distract them.
Addy wears pink-rimmed glasses and ties her orange hair into a ponytail while riding. As for her regular clothes, she wears a green dress and black flats.