The OMAC (Omni Mind and Community) is a cyborg army originally designed to protect humanity from the "threat" of metahumanity.
First activated during the Infinite Crisis when its controller, Brother Eye, deemed that mass-genocide of the metahuman community was the best course of action for humanity's survival, a group superhero effort stopped the attack, reducing the number of OMACs to roughly 200,000 by disabling the majority of them with an EMP blast. After this, Brother Eye initiated the final protocol, "Truth and Justice," by having all the remaining OMACs invade and attack Themyscira to wipe out the Amazons in retalition for Wonder Woman killing Maxwell Lord.
When Brother Eye was defeated during the crisis, the OMACs were rendered inert; freeing their hosts.
Upon Brainiac's attack on Earth, having survived the Infinite Crisis by uploading itself into a new core and becoming a servant to Brainiac, Brother Eye released a new OMAC virus in Gotham City and began assimilating the area around the Knightsdome Sporting Complex. However, it's efforts to further assimilate the city have been stopped by a group of new heroes and villains on instruction from Batman and Joker.
- The OMACs first appeared in The OMAC Project #1 (June 2005).
- The OMACs are voiced by Ben Wolfe.
- During the Infinite Crisis, the OMACs numbered at 1,373,462.
- The OMACs are based upon the character created by Jack Kirby in 1974. The acronym for the original OMAC was "One-Man Army Corps."
- An OMAC unit is formed over a normal citizen usually without their knowledge or consent via a nanotechnological virus. The virus was created from Brainiac-13-derived nanotechnology acquired by the U.S. Department of Defense and LexCorp, which was then secretly introduced into general vaccine supplies.