DC comic book characters

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Across
  1. 2. The female alien from Cryption
  2. 4. The fastest man in the world
  3. 5. The man who lives in Gotham
  4. 6. one who carries a lasso of truth
  5. 7. The Villian that is known for his big smile
  6. 8. A league composed of superheroes that fight justice
  7. 10. Son of the Atlantic Queen
  8. 11. The Shapeshifter of Teen Titans
  9. 12. The most powerful man
Down
  1. 1. A railroad enginere turned superhero
  2. 3. Referred to as Joker's favorite
  3. 5. with a superpower of Canary cry
  4. 9. Part Man and Part Machine