Actress Sierra McCormick played what character in the third-season finale of the CW tv series "Supernatural"?
No Rest for the Wicked (Supernatural): "No Rest for the Wicked" is the third-season finale of The CW television series "Supernatural". No Rest for the Wicked (Supernatural):  Lilith, meanwhile, is entertaining herself by possessing a young girl (Sierra McCormick) and terrorizing her family, a homage to the "Twilight Zone" episode "It's a Good Life". Sierra McCormick: Sierra McCormick (born October 28, 1997) is an American actress. Sierra McCormick: " She also played Lilith on The CW television series "Supernatural".
Lilith