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Publication information
Publisher DC Comics
First appearance Adventure Comics #314 (November 1963)
Created by Edmond Hamilton (script)
John Forte (art)
In-story information
Place of origin Neptune
Team affiliations Legion of Super-Villains
Legion of Substitute Heroes
Abilities Can make his body extremely flat

Ron-Karr is a DC Comics supervillain, and an enemy of the Legion of Super-Heroes. He first appeared in Adventure Comics #314 (November 1963).

Fictional character biography[edit]

Ron-Karr appears in only one panel in his first appearance. He is a native of the planet Neptune, who has the ability to flatten his body. His application for Legion membership is rejected, as his power is considered "too unusual." His name is spelled "Ronn Kar" for this appearance only.

He joins the Legion of Super-Villains during the five part war between the two Legions in the 1980s Legion of Super-Heroes series. He was not that helpful.

He eventually redeems himself when he joins the Legion of Substitute Heroes, whose 1985 special he was referred to in, in their fight against the Dominators' control of Earth.[1]

Powers and abilities[edit]

Ron-Karr has the ability to make his body extremely flat. He still maintains the ability to move and breathe while in this form.

In other media[edit]


  • Ron-Karr appears in the animated Legion of Super-Heroes television series, voiced by Shawn Harrison. He is seen as a member of Lightning Lord's Light Speed Vanguard group.[2] Unlike his comic book version, the animated Ron-Karr is a shapeshifter and even rivaled Chameleon Boy in "The Man from the Edge of Tomorrow" Pt. 2. While under the employ of Imperiex, he was tricked into believing he was Superman, which made him question why he was a villain. He wound up betraying Imperiex and helped the Legion stop the missiles headed for Durla, Chameleon Boy's home planet.


  1. ^ Adventure Comics #372 (September 1968)
  2. ^ Legion of Super-Heroes episode "Lightning Storm"