Jenny Mills

Jennifer "Jenny" Mills, Abbie's younger sister who was confined in a mental institution. As teenagers, they both witnessed the rise of the second Horseman while walking through the forest one day after school. However, Abbie denies seeing the creature, while Jenny insists they both saw it, and so Jenny is institutionalized, since it seems clear she is mentally ill. Unknown to Abbie, though, Sheriff Corbin was Jenny's mentor. While in and out of mental hospitals, Jenny trained in combat in foreign countries, helping Corbin hunt down occult artifacts. She breaks out of the institution, but after Abbie tells her sister she will never again deny what they saw, the sisters are reconciled. Jenny later takes part in helping to solve the mysteries surrounding the Horseman. Following Abigail's death, Jenny remains in contact with Crane, acknowledging that the two of them are the only real family either has left.