Elle a arrêté le mannequinat à l'âge de 17 ans pour travailler comme serveuse dans une communauté de retraités.Adolescente, elle a suivi des cours de théâtre et de chant, avec un coach qui travaille à Broadway.On the acting front, her first contract role came at age 15, playing Lucinda Marie “Lucy” Montgomery on the soap opera (2002).Her acting commitments meant she missed a lot of classes at William Allen High School in Allentown, Pennsylvania, but she graduated in 2003.
Après s'être lancée dans le mannequinat à l'âge de 11 ans, Amanda a commencé une carrière de comédienne à l'âge de 15 ans, en jouant dans les feuilletons télévisés As the World Turns (1999-2001), La Force du destin (2003) ou encore Veronica Mars (2004-2006). Durant sa carrière de mannequin, Amanda a participé à une campagne de vêtements "Limited Too", avec Leighton Meester."They were being coy with each other," a clubgoer says. After Grace [Jones]' performance they sat down at the table next to each other and were hanging out." Moreover, another eyewitness insists, "It definitely looked like something was going on between them." Amanda Seyfried and Dominic Cooper, who started dating in 2008, had maintained a long-distance relationship, keeping in touch via Skype or hopping on planes in between their busy schedules."There's nothing easy about [it]," she stated in a recent interview.In late 2016, Cooper starred in a well-received West End revival of Stephen Jeffreys’ 1994 play, The Libertine at the Haymarket Theatre; he played John Wilmot, Earl of Rochester, the role originated on stage by John Malkovich and played by Johnny Depp in the 2004 film. The "Dear John" star has reportedly taken a hiatus from her relationship with boyfriend Dominic Cooper as a source reveals, "Amanda and Dominic have been on and off for a while - and right now they're taking a break." The source then adds, "They still talk all the time and are trying to work things out.