Who is the publisher of the World's Mightiest Immortal , a fictional character, who is a villain to a fictional superhero appearing in American comic books published by DC Comics also known as Shazam ?
Oggar Oggar, the World's Mightiest Immortal is a fictional character from the publisher Fawcett Comics, whose publication rights were acquired by DC Comics in the 1970s. Oggar was a villain of Captain Marvel chronology in Pre-Crisis; he made no Post-Crisis appearances. He first appeared in "Captain Marvel Adventures" # 61 (May 1946, Fawcett Comics). His first appearance in DC Comics was in "World's Finest Comics" # 264 (August 1980).
Roxxas 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).