Who is hiding behind...?

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Across
  1. 4. Clark Kent
  2. 7. Peter Parker
  3. 8. James Logan Hawlett
  4. 9. Magnus Eisenhardt
  5. 10. Doctor Harleen Frances Quinzel
  6. 12. Professor Banner
  7. 14. Kathy Kane
  8. 15. Tony Stark
Down
  1. 1. Matt Murdoch
  2. 2. Princess Diana
  3. 3. Bruce Wayne
  4. 5. Steven Rogers
  5. 6. Hal Jordan
  6. 11. Bart Allen
  7. 13. Selina Kyle