Helen Hayes Ernesta Snoop Actor Mildred Natwick Gwendolyn Snoop Nicholson Actor Lou Antonio Barney Actor Walter Pidgeon Guest Star Bert Convy Lt. Steve Ostrowski Actor Maurice Evans Guest Star George Maharis Guest Star Vincent Price Guest Star Bernie Casey Guest Star Steve Allen Guest Star Bo Svenson Guest Star William Devane Guest Star Warren Vanders Guest Star Alice Cooper Guest Star Gloria Hendry Guest Star Katherine Helmond Guest Star Penelope Gillette Guest Star Barbara Baxley Guest Star Liam Dunn Guest Star Joan Blondell Guest Star Leonard Stern Executive Producer, Writer Tony Barrett Producer, Writer Leonard Horn Director David Friedkin Director Boris Sagal Director Don Ingalls Writer Robert Foster Writer Jackson Gillis Writer Robert Forster Writer