Alison Ann Sweeney (born September 19, 1976) is an American dramatic actress and reality show host. Sweeney is best known for her portrayal of Samantha "Sami" Gene Brady on the long running NBC drama Days of our Lives., a role she has played continuously on the show since January 6, 1993. In this role, she has earned four Soap Opera Digest Awards and a Fan Voted Daytime Emmy Award. In 2007, she became the host of The Biggest Loser. read full bio here.