Guest Stars Harry Morgan as Harry S. Truman Robert Vaughn as Woodrow Wilson Andrew Duggan as Dwight D. Eisenhower George Kennedy as Warren G. Harding Victor Buono as William Howard Taft Claire Bloom as Edith Bolling Galt Wilson John Anderson as Franklin D. Roosevelt Julie Harris as Helen (Nellie) Taft Estelle Parsons as Bess Truman Celeste Holm as Florence Harding Lee Grant as Grace Coolidge Ed Flanders as Calvin Coolidge Eileen Heckart as Eleanor Roosevelt Jan Sterling as Lou Hoover Larry Gates as Herbert Hoover Kim Hunter as Ellen Axson Wilson Barbara Barrie as Mamie Eisenhower