Haylie Katherine Duff (born February 19, 1985) is an American actress, singer-songwriter, producer and food blogger. She is the older sister of actress and singer-songwriter Hilary Duff. She is best known on her role as Sandy Jameson in the television series 7th Heaven (2005–07), as Summer Wheatley in Napoleon Dynamite (2004), and as Annie Nelson in the made-for-television films Love Takes Wing and its sequel Love Finds a Home (2009).