Moira Kelly (born March 6, 1968) is an American actress. She is best known for portraying Kate Moseley in the 1992 film The Cutting Edge as well as single mother Karen Roe on the teen drama One Tree Hill. She is also known for playing the role of Donna Hayward in Twin Peaks: Fire Walk with Me, replacing Lara Flynn Boyle in the prequel to the 1990 TV series Twin Peaks. Other roles include Dorothy Day in Entertaining Angels: The Dorothy Day Story, White House media consultant Mandy Hampton in the first season of The West Wing, and the voice of Simba's love interest Nala in The Lion King and its sequels The Lion King II: Simba's Pride and The Lion King 1 1/2. She also played Hetty Kelly and Oona O'Neill in Chaplin.