The eccentric and kind-hearted proprietor of Winterhouse, who serves as a guardian and mentor to Elizabeth while safeguarding the hotel’s secrets.

A logical and inventive boy who becomes Elizabeth’s first true friend, bonding over their shared love for puzzles and wordplay.

The malevolent spirit and antagonist, whose dark past and magical ambitions pose a threat to Winterhouse.

A mysterious couple creating tension at Winterhouse, initially appearing as antagonists due to their secretive actions.

The librarian of Winterhouse who supports Elizabeth with her vast knowledge and love for books, offering a nurturing influence.

Elizabeth’s neglectful guardians, whose selfish actions lead her to Winterhouse, contrasting with her experiences there.

Eccentric guests dedicated to a massive jigsaw puzzle, showcasing Winterhouse’s culture of intellectual challenges and charm.