Wonder Man made his first appearance in The Avengers #9, published in October 1964. He was created by the iconic Marvel trio of writer-editor stan_lee, scripter Don Heck, and artist jack_kirby. Initially, Simon Williams was conceived as a one-shot villain, a tragic figure designed to infiltrate the Avengers and die in the very same issue, showcasing the high stakes the team faced and the moral complexities of their heroism. Stan Lee intended for Wonder Man to be a sympathetic antagonist whose heroic turn and subsequent death would be a memorable, self-contained story. However, reader response to the character was unexpectedly strong. Fans were intrigued by his unique powers and his ultimate sacrifice. This positive reception, combined with later writers' desire to explore the ramifications of his existence—most notably through the creation of the Vision—led Marvel to reconsider his permanent demise. His “resurrection” was a gradual process, teased for years through the actions of his villainous brother, the Grim Reaper, who repeatedly sought to revive him. He was officially and fully brought back to life in The Avengers #151 (1976), over a decade after his debut. This return cemented his transition from a tragic villain to a full-fledged superhero, allowing him to join the Avengers and later become a cornerstone of the West Coast Avengers, where he truly came into his own as a character. This unusual path from disposable villain to beloved hero is a testament to the evolving, fan-influenced nature of long-form comic book storytelling.
Simon Williams' journey began not with a heroic calling, but with failure and desperation. He inherited Williams Innovations, a major industrial manufacturing company and a direct competitor to Stark Industries. While a brilliant engineer and businessman, Simon lacked the visionary genius of Tony Stark. He made a series of poor decisions, embezzling funds from his own company in a futile attempt to keep it afloat as it was being out-competed by Stark. Facing prison for his crimes, a desperate Simon was approached by the original baron_zemo, Helmut Zemo's father Heinrich. Zemo offered Simon a deal: he would pay Simon's bail and grant him superhuman powers in exchange for his help in destroying their mutual enemy, Iron Man, and his Avengers teammates. Blinded by his anger towards Stark and with no other options, Simon agreed. He was subjected to Zemo's experimental “ionic ray” treatments, which saturated his body with immense ionic energy, granting him incredible superhuman strength and durability. Zemo christened him “Wonder Man.” As part of the plan, Wonder Man feigned a heroic debut and sought membership with the Avengers, claiming he was being hunted by Zemo's masters_of_evil. The Avengers, including Captain America, Iron Man, Thor, Giant-Man, and the Wasp, accepted him into their ranks. However, Zemo revealed his cruel trick: the ionic energy treatments were slowly killing Simon, and only Zemo possessed the antidote. He was Zemo's pawn, forced to betray his new allies or die. Over the next few days, Simon came to admire the Avengers' genuine heroism and selflessness. When the time came to spring Zemo's trap, Simon's conscience won out. He defied Zemo and helped the Avengers defeat the Masters of Evil, choosing to sacrifice his own life rather than betray the heroes. He seemingly died as the ionic energy consumed him, his last act one of pure redemption. Though his time with them was short, the Avengers mourned him as a fallen comrade. His story, however, was far from over. His brother, Eric Williams, blamed the Avengers for his death and became the villainous Grim Reaper. Meanwhile, the evil robot Ultron stole Simon's recorded brain patterns—which had been preserved by hank_pym—and used them as the template for the personality matrix of his new synthezoid creation, the Vision. For years, Simon existed in a state of suspension, his ionic energy patterns dispersed but not destroyed, until he was finally revived by a combination of voodoo magic (by the villain Black Talon) and alien technology (from Kang the Conqueror), fully returning to the world of the living as a being of pure, stable ionic energy.
As of current MCU continuity, Wonder Man's superhero origin has not been depicted. His existence is confined to a series of clever Easter eggs, primarily in scenes that were ultimately cut from Guardians of the Galaxy Vol. 2 (2017). During a sequence set on Earth, movie posters are visible in the background of a town, all advertising films starring the actor Simon Williams, portrayed by actor Nathan Fillion. This suggests that in the MCU, Simon Williams is already a well-known celebrity, much like his later career in the comics, but seemingly without the preceding origin as a super-powered individual. The posters showcase a “Simon Williams Film Festival” and feature him in various fictional movies, including:
These cut scenes imply that the MCU's version of Simon Williams may completely bypass his industrialist-turned-villain storyline. It's possible he could be introduced as an actor who later gains powers, perhaps through an on-set accident or a cosmic event. This “actor-first” approach streamlines his backstory and leverages the public-facing persona he developed in the comics. Additionally, a stylized animated depiction of Simon Williams as Wonder Man briefly appears on a movie poster in the opening credits of the Disney+ series What If…?, and a movie poster for a film called The Challenger, starring Simon Williams, appears in the background of the Disney+ special Werewolf by Night. These references confirm his continued existence as a figure within the universe, but his powers and connection to the Avengers remain entirely unexplored, leaving his future role open to wide interpretation.
Simon Williams is a being of pure ionic energy, granting him a vast array of powers that place him in the upper echelon of Earth's heroes. His physical form is a solidified energy construct, not traditional flesh and blood, which is the source of his near-immortality and immense power.
Simon's personality has undergone a dramatic transformation. Initially a bitter and desperate man, his heroic sacrifice instilled in him a deep desire for redemption. Upon his return, he was often plagued by self-doubt, feeling like a ghost or a copy of his former self. His friendship with the Beast helped him develop a more jovial and confident exterior. His move to Hollywood introduced an element of showmanship and ego to his personality. He enjoys the fame and adoration that comes with being both a superhero and a movie star. However, underneath the celebrity facade lies a deeply loyal friend and a man who genuinely wants to do the right thing. This internal conflict between his celebrity ego, his heroic duty, and his underlying trauma defines much of his character. In his later years, this conflict manifested as a radical pacifism, where he came to believe the Avengers' constant battles caused more harm than good, a controversial stance that alienated him from his closest allies.
As Simon Williams' MCU counterpart has only been seen on movie posters, there is no direct evidence of any superhuman abilities, equipment, or established superhero personality.
Should the MCU choose to grant him powers, it's likely his origin would be adapted to fit the current cosmic or mystical landscape of the universe.
His personality would likely be an exaggerated version of his comic actor persona: charismatic, a little arrogant, and enjoying the spotlight, providing a stark contrast to the more stoic heroes.
Perhaps Simon's closest and most enduring friendship is with the X-Man and fellow Avenger, the Beast. Their bond was forged during their time together on the main Avengers team. They shared a “buddy” dynamic, often engaging in witty banter and providing comic relief. More importantly, they supported each other through profound personal crises. Hank helped Simon acclimate to his new life as an ionic being, and Simon provided Hank with a non-judgmental friend outside the often-intense world of the X-Men. Their friendship is one of the most beloved “bromances” in Avengers history, built on mutual respect and a shared sense of humor in the face of constant chaos.
Simon's relationship with Wanda is one of the most complex and emotionally charged in his life. He developed a deep, unrequited love for her shortly after joining the Avengers. This was complicated by the fact that Wanda was married to the Vision, a synthezoid whose personality was built from Simon's own brain patterns. For years, Simon struggled with his feelings, loving a woman who was married to a being that was, in a way, his “son” or “brother.” After Vision was dismantled and rebuilt as a colorless, emotionless machine, Wanda's grief eventually led her to Simon. They embarked on a long-term romantic relationship, but it was always haunted by the ghost of Vision. Their romance ultimately ended, but they remain deeply connected by their shared history and affection.
The relationship between Wonder Man and the Vision is unique. Simon initially resented Vision, seeing him as a soulless copy that had stolen his chance at a life with Wanda. Over time, this resentment softened into a complex, brotherly bond. They acknowledged their shared origin, with Vision calling Simon “brother.” Simon's refusal to allow his brain patterns to be used to restore Vision's emotions after his dismantling was a major point of contention, driven by his desire to finally be seen as his own man and his love for Wanda. Their dynamic is a perpetual exploration of identity, humanity, and what it means to be “real.”
No enemy is more personal to Simon than his own brother, Eric. Initially, Eric adored his older brother. When Simon “died” after betraying Zemo, Eric's grief, twisted by his own instability and fueled by villains like the Tinkerer, turned into a vengeful obsession. He blamed the Avengers for Simon's death and became the Grim Reaper. When Simon returned, Eric's mind snapped completely. He refused to believe the returned Wonder Man was the real Simon, instead seeing him as an undead mockery or a soulless automaton. Their battles are always tragic family affairs, with Simon desperately trying to save his brother from his madness and Eric trying to “kill” the impostor he believes has replaced his beloved sibling.
A powerful Maggia leader, Count Nefaria subjected himself to an enhanced version of the process that created Wonder Man, gaining ionic powers that dwarfed even Simon's. As a fellow ionic being, Nefaria is one of the few villains who can physically challenge and even overpower Wonder Man. Their conflicts are brutal, high-powered brawls, with Nefaria representing a dark mirror of what Simon could become if he fully embraced his power without restraint or morality.
Wonder Man's primary allegiance has always been to the Avengers. He joined seeking redemption and found a family. Despite his personal struggles and periods of absence, he has served multiple tours of duty with the main team, acting as its primary “heavy hitter” on many occasions. His power level makes him a crucial asset against cosmic-level threats.
Simon is arguably most associated with the West Coast Avengers, of which he was a founding member. Recruited by Hawkeye to establish a new branch of the team in California, Simon thrived in the sunnier, more relaxed environment. This move allowed him to simultaneously pursue his acting career, making him the team's public face. He was the powerhouse and the heart of the “Wackos,” and his tenure with this team defined his character for a generation of readers.
In a dark and controversial turn, Simon publicly denounced the Avengers, believing their constant cycle of battle was destroying the world rather than saving it. He formed his own team, the “Revengers,” to forcibly stop the Avengers. This misguided crusade was born from his deep-seated trauma and a twisted form of pacifism. He led his team in an attack on Avengers Mansion, but was ultimately defeated and reminded of the good the Avengers truly stand for. This period represents the lowest point in his heroic career, a stark example of his ongoing psychological struggles.
This epic cosmic storyline saw the Avengers face off against Michael Korvac, a god-like being from the future. Wonder Man, relatively new to the resurrected hero life, was part of the massive roster of heroes assembled to stop him. In the final, devastating battle, nearly every Avenger was killed by Korvac's immense power, including Wonder Man. He was among the first to fall, disintegrated by a single blast. However, in a moment of cosmic remorse before his own demise, Korvac used his power to undo the damage, resurrecting every hero he had slain. This event marked Wonder Man's second “death and rebirth,” reinforcing the unique nature of his immortal existence.
A defining moment for the West Coast Avengers, this storyline saw Baron Zemo lead a massive new incarnation of the Masters of Evil in a brutal, systematic takedown of the team. Wonder Man was one of the first to be targeted. He was lured into a trap and ambushed by the Absorbing Man and Titania, who brutally beat him into a coma. Because his body was pure energy, he couldn't be physically broken, but the sheer trauma of the assault was enough to destabilize his ionic form and shut down his consciousness. His defeat was a shocking moment that established the dire threat of Zemo's team and left the WCA without their powerhouse for a crucial part of the battle. His eventual recovery was a turning point in the Avengers' counter-attack.
This storyline fundamentally altered the dynamics between Wonder Man, Scarlet Witch, and Vision. In a government conspiracy, Vision was kidnapped, completely dismantled, and studied. While Hank Pym was able to rebuild him, he could not restore his personality, as the original brain patterns were gone. A desperate Wanda turned to Simon, begging him to allow his brain patterns to be recorded again to restore her husband's emotions. In a pivotal character moment, Simon refused. He argued that the original Vision was dead and that creating another copy would be a violation. This decision was driven by his own long-suppressed feelings for Wanda and his desire to be seen as an individual, not just a template. His refusal led to the creation of the cold, colorless “White Vision” and was the catalyst that eventually drove Wanda into his arms.
During the superhero Civil War, Simon sided with Tony Stark and the pro-registration faction. He believed that superheroes needed to be accountable and saw registration as a logical step. He was an active participant in the conflict, helping to train new registered recruits in the Initiative and fighting against Captain America's anti-registration forces. However, the constant conflict and the moral compromises of the war, such as the use of incarcerated villains on the Thunderbolts program, began to wear on him, planting the seeds of his later disillusionment with the entire superhero community.
In the Ultimate Universe, Simon Williams' role was significantly reduced. He was a bodybuilder who gained immense strength but also severe mental instability. He was a member of the West Coast Ultimates, a short-lived and largely ineffective celebrity super-team, and was quickly defeated and arrested by the mainstream Ultimates.
In the altered reality created by the Scarlet Witch where mutants ruled the world, Simon Williams was one of the biggest movie stars on the planet. He was a human celebrity who was secretly part of Luke Cage's Human Resistance movement, working to overthrow the rule of Magneto's family. He used his fame and resources to aid the resistance before the reality was eventually restored.
Like most heroes in this reality, Wonder Man was infected by the zombie plague. He was part of the zombified horde of heroes that devoured the planet. He was later seen among the zombie Avengers who attacked Doctor Doom's castle and was eventually part of the group that battled the Silver Surfer and Galactus. He was ultimately destroyed along with many other zombies.