Sydney Bernice Sweeney is an American actress. She gained mainstream attention in the Netflix series Everything Sucks! (2018) for her role as Emaline and has portrayed Eden in the Hulu series The Handmaid's Tale (2018) and Alice in the HBO miniseries Sharp Objects (2018). Since 2019, she has starred as Cassie Howard in the HBO teen drama series Euphoria and as Olivia Mossbacher in The White Lotus. In film, she had a role in Quentin Tarantino's 2019 comedy-drama Once Upon a Time in Hollywood, portraying Snake, a member of the Manson Family.
Known For
Americana
Penny Jo Poplin
2025
Echo Valley
Claire Garrett
2025
Eden
Margret Wittmer
2025
My Way
Self
2024
Immaculate
Sister Cecilia
2024
Madame Web
Julia Cornwall
2024
Anyone But You
Bea
2023
Reality
Reality Winner
2023
The Voyeurs
Pippa
2021
Nocturne
Juliet Lowe
2020
Big Time Adolescence
Holly
2020
Once Upon a Time... in Hollywood
'Snake'
2019
Clementine
Lana
2019
Along Came the Devil
Ashley
2018
Under the Silver Lake
Shooting Star #2
2018
The Wrong Daughter
Samantha
2018
Relentless
Ally Drew
2018
It Happened Again Last Night
Young Paige
2017
The Chattering
Ashely
2017
Dead Ant
Sam
2017
Vikes
Ida
2017
Manic
Missy 'Paper Girl'
2017
The Horde
Hailey Summers
2016
Cassidy Way
Kelsey Connors
2016
Stolen from the Suburbs
Emma
2015
The Martial Arts Kid
Julia
2015
Love Made Visible
Leah
2015
The Unborn
Little Janey Hutchins
2015
Held
Lily Woods
2015
Angels in Stardust
Annie
2014
Spiders
Emily
2013
The Bling Ring
Izzy Fishman
2011
The Ward
Young Alice Hudson
2010
ZMD: Zombies of Mass Destruction
Lisa
2010
Night Blind
Little Girl
2010
Takeo
Samantha Wright
2010
Untitled Christy Martin Biopic
Christy Martin
Barbarella
Barbarella
The Housemaid
Millie Calloway
2025
Night Teeth
Eva
2021
Downfalls High
Scarlett Smith
2021
The Opium Eater
Sara Detzer
2010
Scandalous!
Kim Novak
The Masque of the Red Death
I Pretended to Be a Missing Girl
Gundam
American Sole
Split Fiction
The White Lotus
Olivia Mossbacher · (6 episodes)
2021
The Kelly Clarkson Show
(2 episodes)
2019
Euphoria
Cassie Howard · (16 episodes)
2019
Sharp Objects
Alice · (7 episodes)
2018
Everything Sucks!
Emaline Addario · (10 episodes)
2018
In The Vault
Haley Caren · (8 episodes)
2017
Carpool Karaoke: The Series
Self · (1 episode)
2017
The Handmaid's Tale
Eden Spencer · (9 episodes)
2017
Monster School Animation
Madeline Rayon (voice) · (1 episode)
2017
Hot Ones
Self · (1 episode)
2015
Variety Studio: Actors on Actors
Self · (1 episode)
2014
The Tonight Show Starring Jimmy Fallon
Self · (3 episodes)
2014
Honest Trailers
Julia Cornwall (archive footage) · (1 episode)
2012
Kickin' It
Kelsey Vargas · (1 episode)
2011
Chase
Kayla Edwards · (1 episode)
2010
Pretty Little Liars
Willa · (1 episode)
2010
The Middle
Female Student #1 · (1 episode)
2009
90210
Girl · (1 episode)
2008
Heroes
Little Girl · (1 episode)
2006
Made in Hollywood
Self · (1 episode)
2005
Criminal Minds
Dani Forester · (1 episode)
2005
Grey's Anatomy
Erin Weaver · (1 episode)
2005
Robot Chicken
Barbie / Riley Andersen (voice) · (1 episode)
2005
Robot Chicken
Barbie / Cinema Girl (voice) · (1 episode)
2005
MTV Movie & TV Awards
Self / Presenter · (1 episode)
1992
LIVE with Kelly and Mark
Self - Guest · (1 episode)
1988
Saturday Night Live
Self - Host · (1 episode)
1975
People's Choice Awards
Self - Presenter · (1 episode)
1975