Harriet was an actress now confined to a wheel chair because of an unspecified accident. She had a relationship of unknown signifacance with Ryan.
She had a strong beliefe in fearies and had told Ellen of them. After the murders she seems to have lost her beliefe in the fearies.
Harriet had taken a photograph of Herve dead and Cecilia coverd in blood causing the villagers to believe Cecilia was responsible for Herves death.