History of character has not yet been written.
- Hand-to-Hand Combat (Advanced)
- Indomitable Will
- Baseball bat
- Harley Quinn was created by Paul Dini and Bruce Timm, first appearing in "Joker's Favor". However, in the Old Lady Harley continuity, her first appearance was in Harley Quinn Vol 3 42, by Frank Tieri.
- 6 Appearances of Harleen Quinzel (Old Lady Harley)
- 4 Images featuring Harleen Quinzel (Old Lady Harley)
- 1 Quotations by or about Harleen Quinzel (Old Lady Harley)
- Character Gallery: Harleen Quinzel (Old Lady Harley)
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