Maggie stars as althea on the popular amc series fear the walking dead. She is most often recognized from the hit series lost ,. margaret grace denig (born september 21, 1983) is an american actress. She is best known for playing role as shannon rutherford on the abc television series lost. maggie grace (born margaret grace denig; September 21, 1983) is an american actress, best known for her roles as shannon rutherford on the abc television series lost and. maggie grace (born margaret grace denig; September 21, 1983) is an american actress, best known for her roles as shannon rutherford on the abc television series lost and.
