Tessa has a slim build and a relatively tall stature. She wears a short dress with short sleeves, heeled shoes, and a large bow on her head. She is part of a wealthy family and lives in a manor with her parents. It's implied that she's mistreated by her parents, though James is seen as indifferent towards Tessa, while Louisa was more intensive in her abuse as she would shackle Tessa with a chain in her bedroom whenever she misbehaved. She was also noted to be asocial, but she can be lively.