Ajax made his first official appearance in Deadpool #14, published in March 1998. He was created by writer Joe Kelly and artist Walter McDaniel during their character-defining run on the title. Known then only as “The Attending,” his true name and backstory were gradually revealed, establishing him as a formidable physical and psychological threat from Wade Wilson's past. The creation of Ajax was instrumental in grounding Deadpool's flippant, fourth-wall-breaking persona with a genuinely tragic and painful backstory. Joe Kelly's run sought to explore why Wade Wilson behaved the way he did, and Ajax provided the answer: he was the living embodiment of the torture that shattered Wade's mind. His name, Francis, was deliberately chosen for its common use as a female name, providing the perfect insult for a hyper-masculine bully and giving Deadpool a specific, personal weapon to use against his tormentor.
The origin of Ajax is a tale of institutional cruelty and personal vendetta, though the specifics differ significantly between the primary comic continuity and his cinematic adaptation.
In the mainstream Marvel Universe, Francis Freeman was an enforcer at “The Workshop,” a clandestine facility and dumping ground for failed experiments of Canada's Department K, the organization behind the Weapon X Program. Working under the scientist Dr. Emrys Killebrew, Francis's official title was “The Attending,” but his true role was to be the muscle, keeping the “washouts” in line through fear and brutality. Francis was a sadist who took immense pleasure in his work, particularly in tormenting the test subjects. Among these subjects was Wade Wilson, a wise-cracking mercenary who refused to be broken. Wade became Francis's favorite target, enduring endless beatings and psychological torture. Wade's unbreakable spirit and constant mockery, however, began to wear on Francis's fragile ego. The breaking point came when Wade discovered Francis's real name and began taunting him with it relentlessly. Enraged and humiliated, Francis arranged for Killebrew to perform excruciating experiments on Wade's friend, Worm.