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