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Nicholas Quinzel is a New York City con man. He is Harley Quinn's father, and the main reason she wanted to become a psychiatrist - to understand everything he did.
- 1 Appearances of Nicholas Quinzel (New Earth)
- 1 Images featuring Nicholas Quinzel (New Earth)
- Quotations by or about Nicholas Quinzel (New Earth)
- Character Gallery: Nicholas Quinzel (New Earth)