Input (grade 13): Seventeen actors have appeared as the same character in the first six films of the franchise, and many of these actors are expected to reappear in either of the upcoming two parts of Harry Potter and the Deathly Hallows.
Output (grade 12): Sixteen actors appeared as the same character in the first five films of the series, and many of these actors will also be in Half-Blood Prince and Deathly Hallows.