Manhunter...Meet the Manhunter...And the Other Manhunter...Oh, and the Manhunters!

Paul Kirk began life as Rick Nelson, big game hunter turned crime fighter to avenge the death of his friend Inspector Donovan of Empire City of Earth-Two. Unaware that Donovan had himself been recruited into the fraternity of the Manhunters, secretly an armada of android troops originally created on the planet Oa in a parallel universe, Rick quickly assumed to new alter egos. Borrowing the identity of a former manhunter in civilian clothes named Paul Kirk, the adventurous Nelson also assumed the costumed career of those who recruited him. 

Given a special uniform modeled after the androids by the Grand Master who had originated in that other universe, Kirk as the Manhunter had a short lived yet prominent career, even joining the All-Star Squadron during the war time years in the 1940s. And then, Kirk hung up the red and blue and returned to his first love hunting in Africa, after he along with other heroes were recruited to Earth-One* when recruited by fellow former All-Star Robotman, these men becoming reacquainted with their long lost All-Star teammate Hank "Steel" Heywood".

However, while stalking one prey, Kirk let down his guard and was stampede. Fortunately, Heywood had set up an organization known as the Council to enforce order on this world as his Squadron had on Earth-Two, although without the moral factor in the equation. Kept in a coma for decades while his body was repaired, the Council scientists cloned Kirk's body to make duplicates of the hero to be their personal army. 

Back on his homeworld of Earth-Two, another Manhunter agent named Molly Mayne assumed the alter ego of the Harlequin. She was specifically assigned to test and torment her world's Green Lantern, Alan Scott, whom the android Manhunters felt was as much as threat as their former Guardian masters and their Green Lantern Corp in Earth-One's universe. In addition to the illusion-generating eyewear and special mandolin weaponry gifted her by her android benefactors, the Manhunters also gave her Harlequin clones who mindlessly followed her will during one adventure versus the Lantern. What became of these faux-femme fatales after the Harlequin was defeated is unknown.

When revived, Kirk was trained further in combat skills with the intent of leading these clones for the Council, and Heywood's, personal agenda. Instead, Kirk rebelled and joined Interpol agent Christine St. Clair and a man named Nitobe in defeating the Council, and destroy all the clones. All, that is, save one who would infiltrate and lead the Secret Society of Super-Villains in a battle to stem the tide of Darkseid's invasion of Earth-One. He perished trying to end the threat bend the Society in Darkseid.

* Paul Kirk and his eleven All-Star Squadron compatriots who migrated to Earth-One on or after 1945 had their places taken over in Earth-Two’s universe by the Justice Society of post-Crisis Earth-0, who protected that realm from the incursion of forces in an adjacent faux-Asgard dimension. In time, the Society were themselves replaced by the dozen Daemen of their home reality, so that Society could return to Earth-0.

Green Lantern Corps!