High Quality Content by WIKIPEDIA articles! Amanda Michelle Seyfried (born December 3, 1985) is an American actress, singer-songwriter and former child model. She began her career as a child model when she was eleven and when she was fifteen she began her career as an actress; starting off with an uncredited role and going on to have a recurring role on a television series, which expanded into her having a successful television career.In 2004, Seyfried made her film debut in Mean Girls playing a supporting role. She then went on to other films including Nine Lives (2005) and Alpha Dog (2007). In 2008, after landing a lead role on a popular television series (Big Love in 2006) Seyfried appeared as Sophie Sheridan in the musical feature film Mamma Mia!. Other recent notable appearance include a supporting role in Jennifer's Body in 2009, and one of the two lead roles in Dear John the following year. She currently has three films in production.