- Was a child model.
- Appeared on the cover of three books by author Francine Pascal.
- Began her acting career in high school by appearing on daytime soaps, first on CBS's Guiding Light and then ABC's All My Children.
- Breakout film role came in the 2004 high-school comedy Mean Girls, playing the memorably spacey Karen Smith.
- Has been cast in two projects produced by Tom Hanks: the HBO series Big Love and the 2008 film adaptation of the Broadway musical Mamma Mia!
- 2012, Screen Actors Guild Awards — Outstanding Performance by a Cast in a Motion Picture: Nominee
- Jennifer Seyfried — Sister
- Dominic Cooper — Ex-significant Other
- Jack Seyfried — Father
- Justin Long — Ex-significant Other
- Ryan Phillippe — Ex-significant Other
- Thomas Sadoski — Fiancé
- Ann Seyfried — Mother
- Birth Name: Amanda Michelle Seyfried
- Birth Place: Allentown, Pennsylvania, United States
- Profession: Actor
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