Special Guest Stars Paul Winfield as Emmett Rogers Sr. Guest Stars Harry Morgan as Harry S. Truman Victor Buono as William Howard Taft Celeste Holm as Florence Harding Robert Vaughn as Woodrow Wilson George Kennedy as Warren G. Harding Claire Bloom as Edith Bolling Galt Wilson John Anderson as Franklin D. Roosevelt Estelle Parsons as Bess Truman Lee Grant as Grace Coolidge Ed Flanders as Calvin 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 Kim Hunter as Ellen Axson Wilson Barbara Barrie as Mamie Eisenhower