Amanda Michelle Seyfried ( SY-fred; born December 3, 1985) is an American actress. Her accolades include a Golden Globe Award and a Primetime Emmy Award, as well as a nomination for an Academy Award. Named one of the 100 most influential people in the world by Time in 2022, her films as a leading actress have grossed over $2.4 billion worldwide. Seyfried began acting at age 15, with recurring roles on the soap operas As the World Turns and All My Children. In 2004, she transitioned to film acting with her breakthrough role as Karen Smith in the cult classic teen comedy Mean Girls. She found further success portraying Sarah Henrickson in HBO's Big Love (2006–2011), and playing leading roles in the musical Mamma Mia! (2008), the horror comedy Jennifer's Body (2009), the romance drama Dear John (2010), and the sci-fi action film In Time (2011). She expanded into dramatic roles with performances as Cosette in Les Misérables (2012), Linda Lovelace in Lovelace (2013), and a pregnant parishioner in First Reformed (2017). Seyfried was critically acclaimed for portraying Marion Davies in the biographical drama Mank (2020), earning a nomination for the Academy Award for Best Supporting Actress, and Elizabeth Holmes in the Hulu limited series The Dropout (2022), winning the Golden Globe and Primetime Emmy Award for Outstanding Lead Actress. She has since led the Apple TV psychological thriller The Crowded Room (2023) and the Peacock crime drama Long Bright River (2025), and portrayed a wealthy woman in the psychological thriller The Housemaid (2025) and Ann Lee in The Testament of Ann Lee (2025).