1) DC Comics supervillain 
Kivun Roxxas (`RO- shahs`) is a fictional supervillain in the DC Universe. Primarily a foe of the Legion of Super-Heroes, he first appeared in Adventure Comics #307 (April 1963). ==Fictional character biography== As revealed in the story `The Secret Power of the Mystery Super-Hero!`, Anton Roxxas, known as `Roxxas the Butcher`, is the leader...