(born March 6
) is an American actress who is best known for her roles as Mandy Hampton
on the NBC
political drama series The West Wing
and as Karen Roe
on The WB
teen-serial drama series One Tree Hill
She is also known in Disney for providing the mature voices of Nala in the 1994 Disney animated film The Lion King and its following two sequels, Simba's Pride and 1½. She also played Dana Clifton in The Tie That Binds and Rebecca in the 1991 Touchstone Pictures film Billy Bathgate.