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