
Acting · 28 years old
Asheville, North Carolina, USA
Sierra McCormick (born October 28, 1997) is an American actress. She first became known for participating in the game show Are You Smarter Than a 5th Grader? (2007–2008) before making her acting debut with a recurring role as Lilith on the television series Supernatural (2008). She also starred as Scout Thomas on the comedy television series Romantically Challenged (2010), played Alice in the direct-to-DVD film Spooky Buddies (2011) for which she won a Young Artist Award, and Susan Kushner in the comedy film Ramona and Beezus (2010). She had her breakthrough starring as Olive Doyle on the Disney Channel series A.N.T. Farm (2011–2014). McCormick transitioned to more mature roles by starring as Moira in the horror indie film Some Kind of Hate (2015). She then earned critical acclaim for playing Fay Crocker in the science fiction film The Vast of Night (2019) and a nomination from the Critics' Choice Super Awards. She has since played Melissa in the horror film We Need to Do Something (2021), Scarlett Winslow in three episodes of the Hulu series American Horror Stories (2021), and Sybil in the thriller film The Last Stop in Yuma County (2023). Her latest role is Mary Sue in the straight-to-video action comedy Killing Mary Sue (2025). Description above from the Wikipedia article Sierra McCormick, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Disney's Friends for Change Games
Self

Supernatural
Lilith

Supernatural
Zoey

Curb Your Enthusiasm
Emma

Jessie
Connie Thompson

Monk
Anne Marie

Boston Legal
Daniella

American Horror Stories
Scarlett Winslow

CSI: Crime Scene Investigation
Gracie Layman

NCIS
Sally Clark

Medium
Adolescent Allison

A.N.T. Farm
Olive Doyle

Hannah Montana
Gillian

The Last Stop in Yuma County
Sybil

All Good Things
Bailey

The Vast of Night
Fay Crocker

Ramona and Beezus
Susan

Sorority Nightmare
Sarah

Spooky Buddies
Alice

Christmas in the Heartland
Kara Gentry