15 of Sydney Sweeney's Most Memorable Roles

15. Downfalls High (2021)

Teenage romance moves at the speed of a guitar riff in Downfalls High, Machine Gun Kelly’s musical film built around Tickets to My Downfall. Sydney Sweeney plays Scarlett, the popular girl who connects with Chase Hudson’s withdrawn Fenix. With songs doing much of the storytelling, she has limited space to establish their relationship. Her affectionate, unguarded moments give the spectacle some emotional footing, even as the plot reaches enthusiastically for the teenage-tragedy handbook. | © AS Entertainment

13. Echo Valley (2025)

Showing up at your mother’s house covered in someone else’s blood is quite a way to ask for help. As Claire, the daughter of Julianne Moore’s struggling horse trainer, Sweeney makes every appeal for sympathy difficult to separate from manipulation. Her performance is abrasive, needy, and deliberately uncomfortable, especially when Claire uses her mother’s devotion against her. Their scenes give Echo Valley its nastiest question: what happens when protecting your child means becoming someone you barely recognize? | © Apple Original Films

13. Once Upon a Time in Hollywood (2019)

Brad Pitt gets the star entrance at Spahn Ranch; Sweeney helps make the welcome feel wrong. Playing Manson Family member Dianne “Snake” Lake, she occupies a small corner of Quentin Tarantino’s sprawling Hollywood fantasy, alongside Dakota Fanning and Margaret Qualley. This is ensemble atmosphere rather than a substantial character arc, but that distinction matters. Her presence contributes to a sequence where seemingly idle young people become increasingly threatening without needing to announce themselves as movie villains. | © Columbia Pictures

11. Americana (2023)

Penny Jo would like a country-music career. Unfortunately, her proposed route to Nashville involves a valuable Native American artifact and people with extremely poor conflict-resolution skills. Sweeney gives the shy waitress an awkward earnestness in Americana, finding an appealing partner in Paul Walter Hauser’s lonely veteran, Lefty. Their tentative connection offers breathing room between the double-crosses. Beneath Penny Jo’s hesitant delivery sits someone impatient enough to mistake a criminal opportunity for the break she deserves. | © Lionsgate

11. The White Lotus (2021-)

A luxury Hawaiian holiday sounds relaxing until Olivia Mossbacher starts evaluating your existence. Sweeney’s college student turns casual conversation into an oral examination nobody prepared for, delivering Mike White’s barbs with beautifully economical disdain. The sharper joke is that Olivia understands privilege perfectly well when identifying it in other people. Her possessiveness toward friend Paula complicates the superior pose, giving Sweeney opportunities to show how quickly intellectual confidence can collapse into ordinary, ugly jealousy. | © HBO

10. Sharp Objects (2018)

Sharing headphones becomes an unexpectedly moving act of friendship in Sharp Objects. As Alice, the teenage patient who bonds with Amy Adams’s Camille in a psychiatric facility, Sydney Sweeney brings flashes of humor and guarded warmth to an intensely painful story. Their connection gives Camille a way to escape through music, a habit that outlasts their time together. Sweeney has relatively little screen time, but Alice’s influence can be heard long after her scenes end. | © HBO

9. Clementine (2019)

Lana seems to be trying out versions of herself as she speaks. In Lara Gallagher’s intimate drama, Sweeney plays the younger woman who forms an uneasy connection with Karen, a heartbroken visitor occupying her ex’s Oregon lake house. Their conversations shift between flirtation, invention, and uncomfortable differences in experience. Sweeney makes Lana’s apparent assurance feel provisional, giving the silences as much weight as the dialogue. Watching someone decide what to reveal becomes the film’s quiet source of suspense. | © Revery

8. Anyone But You (2023)

Romantic comedy asks its leads to look irresistible while behaving like complete idiots, and Sweeney embraces both responsibilities as Bea. A promising first date with Glen Powell’s Ben goes sour before an Australian wedding forces them back together—and into a pretend relationship. Their sparring gives the film its momentum, while Sweeney’s willingness to look flustered supplies much of its charm. Bea’s uncertainty about her future also gives the misunderstandings something more personal to interrupt. | © Columbia Pictures

7. Big Time Adolescence (2019)

Among the bad advice and aimless hanging out in Big Time Adolescence, Holly provides a useful reality check. Sweeney plays the girlfriend of Pete Davidson’s Zeke, whose appeal as an older friend to teenage Mo exceeds his qualifications as anyone’s role model. Her relaxed performance suits the comedy’s conversational rhythm, avoiding the temptation to force a spotlight onto a supporting part. Holly helps expose the gap between being entertaining company and being someone worth building a future around. | © American High

5. Reality (2023)

The pauses do an extraordinary amount of work in Reality. Playing former intelligence contractor Reality Winner, Sweeney navigates dialogue drawn from the actual transcript of her FBI interrogation, including the awkward small talk surrounding increasingly serious questions. She lets apprehension emerge through tiny adjustments in expression and delivery, without telegraphing every thought. Tina Satter’s restrained staging makes those choices difficult to escape. An ordinary room becomes suffocating, and politeness starts sounding less reassuring with every exchange. | © HBO Films

5. Nocturne (2020)

Practicing harder apparently wasn’t miserable enough. In Nocturne, Sweeney’s Juliet Lowe discovers a dead student’s mysterious notebook while struggling to compete with her more successful twin at an elite music school. The supernatural setup amplifies a painfully recognizable grievance: doing something well means little to Juliet if someone close to her does it better. Sweeney gives that resentment an uncomfortable intensity, making each step toward recognition feel like another concession to an ambition that cannot be satisfied. | © Blumhouse Television

3. The Voyeurs (2021)

Pippa’s new Montreal apartment comes with a view she really should stop enjoying. Sweeney and Justice Smith play a couple whose fascination with their neighbors progresses from shared entertainment to dangerous interference in Michael Mohan’s erotic thriller. Crucially, Sweeney allows Pippa to become an active participant in the mess, rather than merely its shocked witness. Her curiosity acquires an increasingly selfish edge, helping carry a film that treats sensible boundaries as obstacles to a much juicier evening. | © Amazon Studios

3. Immaculate (2024)

Sweeney helped resurrect Immaculate after auditioning for an earlier version as a teenager, eventually producing the film and starring as Sister Cecilia. That commitment pays off in a performance that grows increasingly physical as an American nun discovers the horrors concealed inside an Italian convent. Cecilia’s initial sincerity makes the betrayal sting; the ferocity that follows makes it memorable. The final stretch strips away comforting distance and lets Sweeney’s face, breathing, and screams carry the ordeal. | © NEON

2. The Housemaid (2025)

Employment benefits deserve extra scrutiny when the position involves living with the Winchesters. Sweeney’s Millie accepts a housekeeping job with Amanda Seyfried’s Nina and Brandon Sklenar’s Andrew, hoping to put her troubled past behind her. Paul Feig’s adaptation of Freida McFadden’s thriller makes that fresh start increasingly suspect. Millie gives Sweeney a useful balancing act: she must convey how badly this woman needs the opportunity while preserving the uncertainty around what she brings into the house herself. | © Lionsgate

1. Euphoria (2019)

Cassie Howard can insist she has never been happier while supplying overwhelming evidence to the contrary. Sweeney makes that contradiction devastatingly funny in Euphoria, then refuses to let the joke erase the insecurity beneath it. Cassie’s involvement with Nate, her best friend Maddy’s ex, gives the actress especially volatile material: secrecy, romantic obsession, and the exhausting work of justifying a betrayal. The performance earned an Emmy nomination, but its real achievement is making Cassie understandable without making her behavior defensible. | © HBO