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