Amanda Seyfried is an American actress, model, and singer-songwriter. She began her career as a model when she was 11, then her acting career at 15 with recurring parts on the soap operas As the World Turns and All My Children.
In 2004, Seyfried made her movie debut in the teen comedy Mean Girls. Her subsequent supporting roles were in independent films, such as the drama Nine Lives (2005) and the crime drama Alpha Dog (2006).
She also had a recurring role on the UPN television series Veronica Mars (2004–06). Between 2006 and 2011, Seyfried starred on the HBO drama series Big Love and appeared in the musical feature film Mamma Mia! (2008).