October 28, 1997 (age 14)
Sierra McCormick was born in Asheville, North Carolina. She moved to Los Angeles in a young age. She is an honor student in school. When McCormick was 9 she was one of the five 5th graders to appear in the U.S. game show Are You Smarter Than a 5th Grader?
Sierra McCormick first appearred in the game show Are You Smarter Than A 5th Grader in 2006-2008, after that McCormick took an intrest in acting and appeared in the TV show 'Til Death and was uncredited.
Sierra co-starred in Ramona and Beezus in 2010, she played Susan Kushner, they had to curl Sierra's hair for the role. McCormick also co-starred in the TV Film "A Nanny For X-mas" in 2011, her role was Jackie Ryland.
In 2011 Sierra got picked for the role, Olive in the Disney Channel series A.N.T. Farm. Sierra McCormick was cast after an audition where she continually talked about tigers. Dan Signer stated "And as I heard her continually talking about tigers, I thought 'That's just how Olive would sound.' Which is how Sierra got that part." Sierra stars in the Disney Channel series A.N.T. Farm with China Anne McClain and Jake Short.
She recently guest starred on the new Disney Channel Television show Jessie as Creepy Connie.
|2007-2008||Are You Smarter Than a 5th Grader?||herself||U.S. Game Show|
|2007||'Til Death||Kid (uncredited)||Episode: "Summer of Love"|
|Curb Your Enthusiasm||Emma||Episodes: "The Bat Mitzvah",|
"The Reunion" & "The Table Read"
|2008||Boston Legal||Daniella||Episode: "Dances with Wolves"|
|2008||Supernatural||Lilith||Episodes: "No Rest for the Wicked" & "Yellow Fever"|
|2009||Jack and Janet Save the Planet||Molly||TV film|
|2009||Criminal Minds||Lynn Robillard||Episode: "Bloodline"|
|2009||Hannah Montana||Gillian||Episode: " Welcome to the Bungle"|
|2009||Land of the Lost||Tar Pits Kid||Theatrical film|
|2009||The Breakdown||Little Girl||TV film|
|2009||Monk||Anne Marie||Episode: "Mr. Monk and the Dog"|
|2009||The Dog Who Saved Christmas||Kara Bannister||TV film|
|2010||Medium||Adolescent Allison||Episode: "There Will Be Blood... Type A"|
|2010||CSI: Crime Scene Investigation||Gracie Layman||Episode: "Irradiator"|
|2010||Romantically Challenged||Scout Thomas||Recurring role|
|2010||Ramona and Beezus||Susan Kushner||Theatrical film|
|2010||A Nanny for Christmas||Jackie Ryland||TV film|
|A.N.T. Farm||Olive Doyle||Regular role|
|2011||Disney Friends for Change Games||Herself||Yellow Team|