
Sierra McCormick
Known for: Acting
Born: October 28, 1997
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 th…
Known for

Edge of Everything
2023
Burnouts

Sorority Nightmare
2016

Christmas in the Heartland
2017

The Vast of Night
2019

We Need to Do Something
2021

Killing Mary Sue
2025

Sigil

Spooky Buddies
2011

I Don't Want to Drink Your Blood Anymore

Some Kind of Hate
2015

A Nanny for Christmas
2010

Who Stole My Daughter?
2019
Building Blocks

Camp
2023

Seduced by My Neighbor
2018

All Good Things
2019

The Nana Project
2023

Acting Out
2024

The Last Stop in Yuma County
2024

VFW
2019

Last Chance Motel

The Dog Who Saved Christmas
2009

Exploited
2022

Pretty Little Stalker
2018

The Neighborhood Nightmare
2018

After All
2025

Land of the Lost
2009

Ramona and Beezus
2010

Big Baby
2025

The Honor List
2018

Medium
2005

CSI: Crime Scene Investigation
2000

Monk
2002
Are You Smarter Than a 5th Grader?
2007

American Horror Stories
2021

Romantically Challenged
2010

A.N.T. Farm
2011

Disney's Friends for Change Games
2011

Curb Your Enthusiasm
2000

Supernatural
2005

Jessie
2011

Hannah Montana
2006

NCIS
2003

Boston Legal
2004