Sierra McCormick (b. October 28, 1997) is an American actress, who portrayed the young Fremont child and the demon Lilith in season 3 and 4 of Supernatural.
Sierra has also portrayed Olive Doyle on A.N.T Farm and made an appearance on the second season of the game show Are You Smarter Than a 5th Grader?. Her other roles include Jack and Janet Save the Planet, Ramona and Beezus and A Nanny for Christmas.
Sierra was born in Asheville, North Carolina and currently resides in Los Angeles, California with her parents and sister Kayla.