Guess the Character from their iconic phrases

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Across
  1. 5. MY PRECIOUSSSS!!
  2. 9. Oh Bother!
  3. 10. It does not do to dwell on dreams and forget to live
  4. 12. Of all the trees we could have hit, we had to get the one that hits back
  5. 13. A wise bear always keeps a marmalade sandwich in his hat in case of emergency
  6. 14. I am a Pirate Lord, and you are nothing!
  7. 16. I’ll be in my bedroom, making no noise and pretending I’m not there
  8. 19. Elementary, dear Watson!
  9. 20. These Romans are crazy!!!
Down
  1. 1. Supercalifragilisticexpialidocious
  2. 2. The suspense is terrible, I hope it will last
  3. 3. A character for steadiness once gone is not easily recovered
  4. 4. I wish it need not have happened in my time
  5. 6. you slithered like a serpent into the school kitchen and ate MY PERSONAL SNACK!!
  6. 7. Off with his head!!
  7. 8. With great power comes great responsibility
  8. 11. even the smallest one can change the world
  9. 15. What could be worse than hummus?
  10. 17. We're all mad here
  11. 18. May I have some more please?