Question: Actress Sierra McCormick played what character in the third-season finale of the CW tv series "Supernatural"?
Sentence (from "No Rest for the Wicked (Supernatural)"): The narrative follows the series' protagonists Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles)—brothers who travel the continental United States hunting supernatural creatures—as they attempt to save the latter's soul from damnation.
Relevant evidence: No