
1) Character created by CC Beck 2) Fawcett Comics supervillain 3) Golden Age supervillain
Found on
https://www.crosswordclues.com/clue/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 1970`s. Oggar was a villain of Captain Marvel chronology in Pre-Crisis; he did no Post-Crisis appearances. He first appeared in Captain Marvel Adventures # 61 (May 1946, Fawcett Comics)....
Found on
http://en.wikipedia.org/wiki/Oggar
No exact match found.