Special Guest Stars Barry Sullivan as Attorney General Harry Daugherty Guest Stars Harry Morgan as Harry S. Truman Celeste Holm as Florence Harding Victor Buono as William Howard Taft Robert Vaughn as Woodrow Wilson Claire Bloom as Edith Bolling Galt Wilson George Kennedy as Warren G. Harding John Anderson as Franklin D. Roosevelt Estelle Parsons as Bess Truman 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 Andrew Duggan as Dwight D. Eisenhower Kim Hunter as Ellen Axson Wilson Julie Harris as Helen (Nellie) Taft Barbara Barrie as Mamie Eisenhower