Moira Kelly (born March 6, 1968) is an American actress. She played Dorothy Day in Entertaining Angels: The Dorothy Day Story, Kate Moseley in the 1992 film The Cutting Edge, as well as single mother Karen Roe on the teen drama One Tree Hill, 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 sequel The Lion King II: Simba's Pride.