Lani O'Grady，Although Lani O'Grady retired from acting in the '80s to become a talent agent like her mother, she had long secured her place in the TV Land pantheon as Mary, the brainiac wannabe doctor in Eight Is Enough (1977)'s expansive Bradford brood. The dramedy, starring Dick Van Patten as a newspaper columnist and superdad, ran on ABC from 1977-1981.