Deanna Dunagan (born May 25, 1940) is a Chicago-based Americanactress. Although Dunagan has appeared on television and in films, she is most admired for her work as a stage actress. She is best known for her Tony Award-winning portrayal of Violet Weston in Tracy Letts' and for her portrayal of Nana in M. Night Shyamalan's 2015 film The Visit.