
Sierra McCormick
Known for Acting · 44 credits
- Born
- 1997-10-28 (age 28)
- Place of birth
- Asheville, North Carolina, USA
- Also known as
- Sierra Nicole McCormick · シエラ・マコーミック
Biography
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.
Known For
TV Shows (14)

Supernatural
2005
as Lilith / Zoey

NCIS
2003
as Sally Clark

CSI: Crime Scene Investigation
2000
as Gracie Layman

Monk
2002
as Anne Marie

Curb Your Enthusiasm
2000
as Emma

Medium
2005
as Adolescent Allison

Boston Legal
2004
as Daniella

Hannah Montana
2006
as Gillian

Jessie
2011
as Connie Thompson

American Horror Stories
2021
as Scarlett Winslow

A.N.T. Farm
2011
as Olive Doyle

Romantically Challenged
2010
as Scout Thomas

Disney's Friends for Change Games
2011
as Self
Are You Smarter Than a 5th Grader?
2007
Movies (30)

Land of the Lost
2009
as Tar Pits Kid

The Vast of Night
2019
as Fay Crocker

The Last Stop in Yuma County
2024
as Sybil

Ramona and Beezus
2010
as Susan

After All
2025
as Monica

Spooky Buddies
2011
as Alice

VFW
2019
as Lizard

Camp
2023
as Lily

Exploited
2022
as Chloe

A Nanny for Christmas
2010
as Jackie Ryland

Christmas in the Heartland
2017
as Kara Gentry

All Good Things
2019
as Bailey
Building Blocks
as Adult Desariee

Seduced by My Neighbor
2018
as Allie

The Dog Who Saved Christmas
2009
as Kara Bannister

Killing Mary Sue
2025
as Mary Sue

Some Kind of Hate
2015
as Moira

Pretty Little Stalker
2018
as Bridget

We Need to Do Something
2021
as Melissa

The Honor List
2018
as Charlotte

Who Stole My Daughter?
2019
as Katie Sullivan

The Neighborhood Nightmare
2018
as Allie

Sorority Nightmare
2016
as Sarah
Burnouts

Last Chance Motel

Acting Out
2024
as Sierra

The Nana Project
2023
as Sarah

Edge of Everything
2023
as Abby

I Don't Want to Drink Your Blood Anymore

Sigil
About Sierra McCormick
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 h… With 44 credits spanning from 2000 to 2025, Sierra McCormick has appeared in 30 films and 14 TV shows.
Fans searching for Sierra McCormick movies, Sierra McCormick filmography, or the latest projects starring Sierra McCormick can stream many of these titles on CineFlixo, free and in HD, with no subscription required.
Most Popular Sierra McCormick Movies
- Land of the Lost (2009) — as Tar Pits Kid
- The Vast of Night (2019) — as Fay Crocker
- The Last Stop in Yuma County (2024) — as Sybil
- Ramona and Beezus (2010) — as Susan
- After All (2025) — as Monica
Where to Watch Sierra McCormick Films
Most Sierra McCormick movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Sierra McCormick, check our movies catalogue and browse page.