Allison Williams is an American actress and television producer, best known for her role as Marnie Michaels on the HBO series Girls. Born on April 13, 1988, in New Canaan, Connecticut, she is the daughter of NBC news anchor Brian Williams. In addition to her work on Girls, Allison has appeared in various films and television shows, including the horror movie Get Out. She has also lent her voice to animated projects and participated in live theater, showcasing her versatility as a performer.