Michelle Stacy was a cute prolific and pretty popular child actress of the 70s who acted in both films and TV shows alike for six years straight Perhaps best known as the voice of Penny in the charming Disney animated feature The Rescuers 1977 Michelle also had memorable small parts in the science fiction pictures Logans Run 1976 and Demon Seed 1977 Stacy was excellent in a sizable supporting role as a traumatized mute girl whos rescued and protected by Jon Cedar in the immensely entertaining revoltofnature horror outing Day of the Animals 1977 She also did guest spots on such TV shows as Mannix 1967 The Waltons 1972 The Incredible Hulk 1977 Eight Is Enough 1977 and BJ and the Bear 1978 and popped up in a bunch of TV commercials for Peter Pan Peanut Butter in the late 70s Following her hilarious cameo as the little girl who likes black coffee in the uproarious Airplane 1980 Michelle Stacy suddenly stopped acting and seems to have vanished into oblivion