The Omega Men are a team of extraterrestrial superheroes who have appeared in various comic book series published by DC Comics. They first appeared in Green Lantern #141 (June 1981), and were created by Marv Wolfman and Joe Staton.
After appearances in Green Lantern, Action Comics and The New Teen Titans, the Omega Men were featured in their own comics series which ran for 38 issues from April 1983 to May 1986. During its run, writer Roger Slifer and artist Keith Giffen created the mercenary anti-hero Lobo.
The Omega Men were assembled as a group of renegades and representatives of conquered Vegan worlds to fight Citadelian aggression. Pre-Infinite Crisis the team was based on the planet Kuraq. The Omega Men are important peacekeepers in their sector because the Green Lantern Corps is not allowed into Vegan space, due to a long standing agreement with the Psions.
In the darkly humorous Lobo’s Back, Lobo is killed over and over again by one of his quarries but is refused entrance to both Heaven and Hell. As a result, the Main Man finds himself reincarnated in various forms, among them a woman and a squirrel. Furious but unfazed by his less than appealing new identities, the bounty hunter continues his mission.
Lobo was introduced as a regular character in Keith Giffen and Roger Slifer’s Green Lantern and Teen Titans spin-off Omega Men. At that time, he was a Velorpian whose entire race had been exterminated by Psions and was partnered with Bedlam, whom he later killed; his origin was later retconned.
In 1990, he appeared in his four-issue own miniseries, Lobo: The Last Czarnian, plotted by Giffen, written by Alan Grant and with art by Simon Bisley, which changed his origin story: he became the last Czarnian after violently killing every other member of the species. That miniseries led to many subsequent miniseries and specials.