Who am I?

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Across
  1. 5. I am the Batman's Arch Enemy
  2. 6. I lost my shoe at a party
  3. 7. I live in a pineapple under the sea
  4. 9. I am Mickey Mouse's dog
  5. 10. I am a superhero from Themyscira
  6. 12. I am a famous vampire from Transylvania
  7. 14. I am the eccentric owner of a popular candy factory
  8. 15. I am a talking dog who solves mysteries
  9. 17. I am Mario's green-hatted brother
  10. 18. I am Anna's talking snowman friend
  11. 19. I am king of the lions
  12. 20. My father is Darth Vader
Down
  1. 1. I was born on Krypton and raised in Smallville
  2. 2. I am a giant monster from Japan
  3. 3. I dressed up as a man to serve in the Chinese army
  4. 4. I am most famous and best-selling doll in the world
  5. 8. I married a prince in New Orleans
  6. 11. I am a little mermaid
  7. 13. My best friends are named Knuckles and Tails
  8. 16. I was the first Black president of the United States