What is Joker's real name?

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Tags

1. #batman
2. #character
3. #often
4. #napier
5. #considered
6. #comedian
7. #receive
8. #backstory
9. #mystery
10. #being
11. #likely
12. #origin
13. #gangster
14. #failed
15. #joker
16. #burton
17. #named