Star Wars Films: Character Appearances

Please inform me of any characters I have missed.
  1. R2-D2: 7/7 Movies
    Episode I through VII.
  2. C-3PO: 7/7 Movies
    Episode I through VII.
  3. Darth Vader/Anakin Skywalker: 6/7 Movies
    Episode I through VI.
  4. Obi-wan Kenobi: 6/7 Movies
    Episode I through VI.
  5. Emperor Palpatine: 5/7 Movies
    Episode I through VI except IV.
  6. Chewbacca: 5/7 Movies
    Episode III through VII.
  7. Yoda: 5/7 Movies
    Episode I through VI except IV.