: A journalist and Louise’s best friend who assists in the investigation despite being preoccupied with her own high-stress wedding plans.

: The new commander of the Missing Persons Department. This case forces her to return to her rural childhood home and confront her own suppressed past.

: After a woman with a distinct facial scar is found dead, a witness identifies her as "Lisemette," a resident of the now-shuttered Eliselund mental institution. Louise discovers Lisemette had a twin sister; both were supposedly deceased decades earlier, revealing a disturbing pattern of abandonment and systemic neglect. Key Characters :

: Louise’s new partner, an enigmatic and often late-arriving detective with a drinking problem who eventually proves to be a dedicated investigator.