Read more about OMAC (Buddy Blank) at: Wikipedia

Official Site: DC Comics

OMAC (Buddy Blank, the One-Man Army Corps) is a superhero comic book created in 1974 by Jack Kirby and published by DC Comics. The character was created towards the end of Kirby's contract with the publisher, following the cancellation of Kirby's New Gods, and was reportedly developed strictly due to Kirby needing to fill his contractual quota of 15 pages a week.

Set in the near future ("The World That's Coming"), OMAC is a corporate nobody named Buddy Blank who is changed via a "computer-hormonal operation done by remote control" by an A.I. satellite called Brother Eye into the super-powered One-Man Army Corps (OMAC).

OMAC works for the Global Peace Agency (GPA), a group of faceless people who police the entire world using pacifistic weapons. The world balance is too dangerous for large armies, so OMAC is used as the main field enforcement agent for the Global Peace Agency. The character initially becomes the Ares-like war machine to save a female coworker at the Pseudo-People factory (manufactures of androids initially intended as companions, but later developed as assassins). The coworker is revealed to be in actuality a bomb, and Blank is left in the employ of the GPA, sacrificing his identity in their relentless war, with faux parents his only consolation and companions.

The original OMAC series lasted for eight issues (1974-1975), which was cancelled before the last storyline was completed, Kirby writing an abrupt ending to the series. Later, towards the end of Kamandi (after Kirby had left that title), OMAC was tied into the back-story and shown to be Kamandi's grandfather. An OMAC back-up feature by Jim Starlin was started in issue #59, but the title was cancelled after the first appearance. It would later finally see print in Warlord, and a new back-up series would also appear in that title (#37-39, 42-47). OMAC made appearances as a guest alongside Superman in DC Comics Presents #61.

OMAC (Buddy Blank) has not been a contender in any CBUB matches.