Haylie Duff. Actress: Napoleon Dynamite. Haylie Katherine Duff (born February 19, 1985) is an American actress, singer, songwriter, television host, writer, and fashion designer. She is also the older sister of American singer and actress Hilary Duff.Haylie Duff was born in Houston, Texas. Duff's mother, Susan Duff is a film producer who was a co-executive producer of Cinderella Story (2004), a producer of Der perfekte Mann (2005) and Material Girls...