Cassidy Freeman (born April 22, 1982, in Chicago, IL) is an American actress and musician. She is known for her role as Tess Mercer in The CW's superhero drama "Smallville" (2001) and Cady Longmire in "Longmire" (2012). Her parents are prominent attorneys, who also own a cattle ranch in Montana. She is the youngest of three children, brothers voice actor Crispin Freeman and musician Clark Freeman.