Sierra McCormick

Acting

Sierra McCormick

Born 1997-10-28 · 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.

Acting credits

Big Baby poster
4.0

A nightmare involving a maniac killer in a baby mask serves as inspiration for horror screenwriter Adam Lewis's new script. As more nightmares, visions, and real life terror being to challenge Adam's sanity, he finds himself in a desperate struggle to control his writing, his reality, and who will be Big Baby's next victim.

Big Baby

2025

Land of the Lost poster
5.5

On his latest expedition, has-been scientist Dr. Rick Marshall is sucked into a space-time vortex alongside his crack-smart research assistant Holly and redneck survivalist Will into a world populated by marauding dinosaurs and painfully slow creatures called Sleestaks. With no weapons, few skills and questionable smarts, the trio must rely on their only ally, a primate named Chaka, to try to survive long enough to figure out a way back home.

Land of the Lost

2009

Ramona and Beezus poster
6.6

Ramona is a little girl with a very big imagination and a nose for mischief. Her playful antics keep everyone in her loving family on their toes, including her older sister Beezus, who's just trying to survive her first year of high school. Through all the ups and downs of childhood, Ramona and Beezus learn that anything's possible when you believe in yourself and rely on each other.

Ramona and Beezus

2010

The Last Stop in Yuma County poster
6.9

While awaiting the next fuel truck at a middle-of-nowhere Arizona rest stop, a traveling young knife salesman is thrust into a high-stakes hostage situation by the arrival of two similarly stranded bank robbers with no qualms about using cruelty—or cold, hard steel—to protect their bloodstained, ill-gotten fortune.

The Last Stop in Yuma County

2024

The Vast of Night poster
6.6

At the dawn of the space-race, two radio-obsessed teens discover a strange frequency over the airwaves in what becomes the most important night of their lives and in the history of their small town.

The Vast of Night

2019

Spooky Buddies poster
6.0

The nefarious Warwick the Warlock has returned from his astral imprisonment, and plans to make the final sacrifice for ultimate power - all he needs is the soul of a pure heart. The Buddies, alongside their new spectral friend Pip, race against the clock to defeat the sorcerer, who has enlisted the Halloween Hound to do his dirty work under the cover of the neighborhood festivities.

Spooky Buddies

2011

Camp poster
3.2

An ensemble coming-of-age story centered around a group of teenagers who navigate friendship, romance, and betrayal in their final year of sleep-away camp.

Camp

2023

After All poster
6.5

When traditional grandmother Verna, suffers a stroke, her estranged daughter Ellen, returns to their modest home, facing the role of caregiver to both her ailing mother and her teenage daughter. As Verna’s memories blur and long-buried family secrets resurface, Ellen confronts painful truths about her past. In the midst of family upheaval, Haley struggles with relentless bullying, her identity, and anxiety, while watching her once-stable world fall apart.

After All

2025

Christmas in the Heartland poster
6.1

Kara and Jessie are two teenage girls from very different worlds, but with a little Christmas magic, they find they have much more in common than they ever imagined.

Christmas in the Heartland

2017

Exploited poster
4.2

A college freshman becomes obsessed with the previous owner of his school issued laptop, a webcam model whose last session may have ended in murder.

Exploited

2022

The Dog Who Saved Christmas poster
5.0

Zeus, a Labrador Retriever and a former police dog, has lost his bark after his barking ended up blowing off a five-year investigation and his partner can't shoot straight again and ends up at the pound. He is adopted by a father as both an early Christmas present and as a guard dog for the house, but the mom remains hesitant.

The Dog Who Saved Christmas

2009

Killing Mary Sue poster
6.0

A corrupt senator arranges for the murder of his biggest liability, his erratic burnout stepdaughter, only for her to unwittingly discover her natural talent as an untouchable killer.

Killing Mary Sue

2025

No artwork available
NR

No synopsis available yet.

GUM

The Honor List poster
5.8

Four girls sink a time capsule in a lake with a list of things they want to do before graduation, but they all go separate ways before graduating. When a tragedy strikes, they reunite to find the capsule and complete the bucket list.

The Honor List

2018

Pretty Little Stalker poster
4.6

A self help writer and her family become the target of a troubled girl.

Pretty Little Stalker

2018

We Need to Do Something poster
5.2

Seeking shelter from a storm, a family finds themselves trapped in a bathroom for days with no sign of rescue and untold evils lurking just beyond the walls.

We Need to Do Something

2021

A Nanny for Christmas poster
5.6

Ally is a smart young career woman who needs a new job. Samantha is a busy Beverly Hills advertising executive/mom whose too-well-mannered kids need some fun in their lives. And Danny Donner is the tough-guy owner of a chocolate company who wants a major ad campaign immediately. Could it all somehow lead to the Christmas that changes everyone's lives forever?

A Nanny for Christmas

2010

Sigil poster
NR

Three young women who gather to perform an occult ritual orchestrated by their recently deceased friend. The girls blindly follow their dead friend’s cryptic instructions only to realize that they are the final pieces in a deadly puzzle she set in motion before her death. What begins as a ritual to have their deepest wishes granted soon twists into a waking nightmare of survival and betrayal.

Sigil

VFW poster
5.8

A typical night for veterans at a VFW turns into an all-out battle for survival when a desperate teen runs into the bar with a bag of stolen drugs. When a gang of violent punks come looking for her, the vets use every weapon at their disposal to protect the girl and themselves from an unrelenting attack.

VFW

2019

Seduced by My Neighbor poster
5.2

Single mom Sarah moves into the suburbs and starts dating a firefighter, only to find herself the target of an obsessive neighborhood watchman who aims to prove he's the best man to protect her, even if he has to create the danger himself.

Seduced by My Neighbor

2018

Some Kind of Hate poster
4.7

When troubled teen Lincoln is subjected to severe bullying, he accidentally conjures the vengeful ghost of Moira Karp. Once a teenage girl pushed to suicide, Moira is now an unstoppable force on a mission of gruesome retribution. But when she goes too far, Lincoln must prevent her from spiraling out of control.

Some Kind of Hate

2015

All Good Things poster
6.9

Two big-city teenage sisters are sent to their grandparents' farm for Christmas break against their wishes. While there, the sisters connect to their roots and help save the farm from foreclosure.

All Good Things

2019

Last Chance Motel poster
NR

A newlywed couple's dream wedding spirals into a bloody nightmare when they uncover that their secluded venue- a desolate motel deep in the Nevada desert- is run by a relentless bloodthirsty family with dark secrets, revealing that one bride's future may not be all that it was promised to be.

Last Chance Motel

2026

The Nana Project poster
4.5

Follows Helen "Nana" Lewis, a feisty chess master, and her grandsons, as they embark on a road trip to support her rise to state championships.

The Nana Project

2023