A mysterious and influential philanthropist whose bequeathal of his estate to Avery sets off a chain of events filled with puzzles and secrets. His legacy plays a crucial role in the unfolding mysteries and challenges facing the characters.

A pivotal figure in the story connected to Avery's exploration of her self-identity as she and others strive to uncover his true whereabouts and significance. Though his appearances are limited, his influence on the narrative is substantial.

Avery’s supportive half-sister who helps her navigate her challenging new life. Libby’s presence highlights themes of family loyalty and bonds, accompanying key plot developments.

The elder grandson of Tobias Hawthorne, whose potential romantic involvement with Libby adds depth to the family dynamics. He is involved in significant family revelations that impact the main plot.

One of Tobias Hawthorne's grandsons who shares romantic tension with Avery, adding complexity to her relationships. His refinement and intellect emphasize the class disparities in Avery's new surroundings.

Another of Tobias Hawthorne's grandsons and Avery's main romantic interest, whose relationship with her evolves over the course of the story. He plays a key role in supporting her growth and pursuit of answers within the family mystery.

The youngest Hawthorne grandson who contributes to the uncovering of important family secrets. His connections to other characters assist in progressing the storyline and relationships.