He joins the Legion of Super-Villains during war between the two Legions.
- Can make his body extremely flat
- 20 Appearances of Ron-Karr (Pre-Zero Hour)
- 1 Images featuring Ron-Karr (Pre-Zero Hour)
- Quotations by or about Ron-Karr (Pre-Zero Hour)
- Character Gallery: Ron-Karr (Pre-Zero Hour)
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|Legion of Super-Heroes Villain(s)|
This character or group of characters is or was primarily an enemy of the Legion of Super-Heroes from the 31st Century, and may have existed in any of the various Legion continuities, including but not limited to the Original Legion, Reboot Legion, and the Prime Legion. This template will categorize articles that include it into the "Legion of Super-Heroes villains" category.