Chapman was a guest actress on two episodes of Magnum , P.I. - `` The Black Orchid '' from season 1 and `` The Woman on the Beach '' from season 2 . Chapman was a guest actress on the final episode of Galactica 1980 titled `` The Return of Starbuck '' , where she played the Seraph Angela , as well as two episodes of Magnum , P.I. - `` The Black Orchid '' from Season one and `` The Woman on the Beach '' from Season two .