History of character is unknown.
- 1 Appearances of Hardknox (New Earth)
- 2 Images featuring Hardknox (New Earth)
- Quotations by or about Hardknox (New Earth)
- Character Gallery: Hardknox (New Earth)
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|Superman Villain(s) |
This character is or was primarily an enemy of Superman in any of his various incarnations, or members of the Superman Family. This template will categorize articles that include it into the "Superman Villains category."