History of character has not yet been written.
- Tactical Analysis
- Hand-to-Hand Combat (Basic)
- Indomitable Will
- 11 Appearances of Joker Jr. (Prime Earth)
- 7 Images featuring Joker Jr. (Prime Earth)
- 1 Quotations by or about Joker Jr. (Prime Earth)
- Character Gallery: Joker Jr. (Prime Earth)
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