Emily's love interest and a major dryadologist at Cambridge, who is secretly one of the fae and possesses courtly magic related to time and summer elements, often challenging Emily's perceptions of the Folk.

The head of the Dryadology Department at Cambridge, an eccentric scholar with a vast body of work on the Folk, who becomes a mentor figure to Emily despite their initial mutual resentment.

Emily's niece and a bright and enthusiastic student of dryadology, whose determination to form a meaningful relationship with her aunt introduces new dynamics into Emily's life.