Quicksilver made his grand debut alongside his sister in The X-Men
#4, published in March 1964. He was co-created by the legendary duo of writer Stan Lee and artist Jack Kirby, the architects of the burgeoning Marvel Age of Comics. Introduced as a founding member of the Brotherhood of Evil Mutants, Quicksilver was designed as an antagonist for the original X-Men, but with a crucial layer of complexity. Unlike many villains of the era, Pietro and Wanda were not driven by pure malevolence; they were indebted to Magneto for saving their lives and served him with conflicted reluctance.
This moral ambiguity was a hallmark of Lee and Kirby's work and positioned Quicksilver for a swift heroic turn. Just over a year later, in Avengers
#16 (May 1965), he and the Scarlet Witch, along with a reformed Hawkeye, joined Captain America to form the iconic second generation of Avengers, famously dubbed “Cap's Kooky Quartet.” This move cemented his status as a major Marvel hero and began a long, complicated history with Earth's Mightiest Heroes, a journey marked by impatience, arrogance, and an unwavering, often dangerous, devotion to his sister.
Quicksilver's in-universe origin is one of the most famously and repeatedly altered histories in all of comics, a testament to his complex publication rights and evolving narrative importance. The core elements of his story are radically different between the primary comic continuity and the cinematic universe.
Pietro Maximoff's history is a tangled web of retcons and revelations. For decades, a single narrative dominated, only to be completely upended in the modern era.
The initial story established that Pietro and his twin sister Wanda were born on Wundagore Mountain in the small European nation of Transia. They were raised by Romani parents, Django and Marya Maximoff. Their powers manifested in their adolescence, causing superstitious villagers to attack them. They were saved from the mob by the master of magnetism, Magneto, who press-ganged the terrified twins into his Brotherhood of Evil Mutants.
This origin was dramatically expanded in the 1970s. It was revealed that their true mother, Magda Lehnsherr, had fled from her husband after witnessing his terrifying power and burgeoning extremism. Pregnant, she sought refuge at Wundagore, the base of the High Evolutionary. She gave birth to the twins and then fled into the wilderness, never to be seen again. The High Evolutionary, a master geneticist, was intrigued by the newborns and was said to have “tinkered” with their genetic code before placing them in the care of the Maximoffs. Their father was revealed to be none other than Magneto himself, a revelation that redefined their family dynamic for nearly forty years. This familial link to the X-Men's greatest foe became a central pillar of their characters, explaining their immense power and their constant struggle between good and evil.
However, in the wake of the AXIS
event (2014), this entire history was erased. During a complex magical battle, the Scarlet Witch cast a spell intended to harm only her own bloodline, which shockingly had no effect on Magneto. The subsequent investigation in the pages of Uncanny Avengers
revealed a new truth: Pietro and Wanda were not mutants at all. They were ordinary human children who had been abducted and cruelly experimented upon by the High Evolutionary. He had granted them their powers and disguised them as mutants, lying to them about their parentage to hide his crimes. The Maximoffs who raised them were, in fact, their biological parents after all, with their Romani heritage once again becoming a key part of their background. This retcon was highly controversial among fans, as it severed a decades-long connection to Magneto and the wider mutant world.
The MCU provided a completely different, streamlined origin for Pietro Maximoff, first teased in the mid-credits scene of Captain America: The Winter Soldier
(2014) and fully explored in Avengers: Age of Ultron
(2015).
In this continuity, Pietro (portrayed by Aaron Taylor-Johnson) and Wanda are Sokovian nationals. Their childhood was shattered when a mortar shell manufactured by Stark Industries destroyed their apartment building, killing their parents and trapping them in the rubble for two days. This traumatic event instilled in them a profound and burning hatred for Tony Stark and, by extension, the Avengers.
As young adults, seeking the power to enact their revenge, they volunteered for experiments conducted by a remnant HYDRA cell led by Baron von Strucker. Strucker was using the scepter previously wielded by Loki, which secretly housed the Mind Stone, to unlock latent superhuman potential in human subjects. The Maximoffs were the only test subjects to survive the process. The cosmic energy of the Infinity Stone activated Pietro's latent abilities, granting him incredible super-speed, while his sister gained a range of psionic powers.
This origin was a pragmatic adaptation driven by real-world business. At the time of the film's production, 20th Century Fox held the film rights to the X-Men and all associated concepts, including the term “mutant” and the character of Magneto. Marvel Studios was therefore legally prohibited from depicting the twins as mutants or as Magneto's children. By tying their powers to an Infinity Stone, the MCU integrated them seamlessly into its own cosmic narrative and provided a compelling, personal motivation for their initial conflict with the Avengers.
Pietro's powers have fluctuated over the years, but their core nature remains consistent. He is a biological engine built for speed, pushing the boundaries of physics and human endurance.
Pietro's personality is as much a part of his character as his speed. He is famously arrogant, condescending, and cripplingly impatient. He often acts before he thinks, a trait that has landed him in trouble numerous times. This abrasive exterior hides deep-seated insecurities and a fierce, often suffocating, protectiveness over his sister Wanda. He yearns for respect and validation but his own personality frequently alienates those he seeks it from.
The MCU's Quicksilver had a much briefer tenure, and his abilities were depicted in a more grounded, albeit still spectacular, fashion.
Age of Ultron
, he was shown to be fast enough to casually pluck bullets from the air, dismantle Ultron sentries before they could react, and evacuate civilians from a collapsing city. His speed was visibly supersonic, as evidenced by the sonic booms and distortion he created when running. His top speed was never precisely quantified but was sufficient to make him a formidable threat to the Avengers.
The MCU's Pietro shared the comic version's cockiness and overconfidence. However, his arrogance was tempered by a clear, relatable motivation: avenging his parents and protecting his sister. His journey in Age of Ultron
is a complete arc, moving from a vengeful antagonist to a true hero who makes the ultimate sacrifice, finding a cause worth dying for beyond his personal vendetta.
House of M
reality. Their bond is the central, defining axis of his entire existence.Son of M
, where he stole the Terrigen Mists, made him a persona non grata among the Inhumans for years.
This two-part saga represents the absolute apex of Quicksilver's impact on the Marvel Universe. It begins with the Scarlet Witch suffering a catastrophic mental breakdown, causing her to lose control of her reality-warping powers and kill several of her teammates. In the aftermath, the Avengers and X-Men gather to decide her fate, with many believing she is too dangerous to live. Horrified, Pietro intervenes. Fearing for his sister's life, he convinces a vulnerable Wanda to use her powers one last time to give everyone what they want, creating a new, “perfect” world.
In the resulting House of M
reality, mutants are the dominant species, ruled by the House of Magnus. Pietro is a beloved prince, living in a utopia built on a lie. When a handful of heroes regain their memories and confront him, a distraught Pietro lashes out. His actions lead directly to the unraveling of the pocket dimension and Wanda's final, devastating act: uttering the words “No more mutants,” which instantly depowers over 90% of the world's mutant population. Pietro's desperate attempt to save his sister resulted in the near-extinction of the people he once called his own.
This miniseries explores the direct fallout for a depowered, suicidal, and universally hated Pietro Maximoff. Hitting rock bottom, he concocts a desperate plan to regain his powers and undo the damage he helped cause. He travels to the Inhuman city of Attilan and exposes himself to their sacred Terrigen Mists. The process grants him a new, unstable form of super-speed, including the ability to jump through time. He then steals the Terrigen Crystals themselves, hoping to use them to restore the powers of other depowered mutants. The results are disastrous, as the Terrigenesis process is violently unstable for non-Inhumans, causing horrific mutations and deaths. His actions are seen as an act of war by the Inhumans and a betrayal by the mutant community, making him a pariah to all.
During the conflict between the Avengers and the Phoenix-Force-empowered X-Men, Quicksilver firmly sides with the Avengers. Having learned from his past mistakes, he dedicates himself to protecting the students at the Avengers Academy and his sister, who plays a critical role in the final battle against the Phoenix. His role in AvX
is one of redemption, showing a more mature and responsible Pietro who understands the dangers of unchecked power and the importance of fighting for the greater good, rather than just his own selfish or familial desires.
X-Men: Days of Future Past
, Peter Maximoff is a charismatic, kleptomaniacal teenager living in the 1970s. He is recruited by Wolverine and Charles Xavier to break Magneto out of a prison beneath the Pentagon, resulting in one of the most iconic and beloved superhero film sequences of all time. He is later revealed to be Magneto's estranged son. This version is defined by his laid-back, humorous personality, a stark contrast to the comics' arrogant and intense Pietro.WandaVision
(Ralph Bohner): The Disney+ series WandaVision
featured a meta-casting stunt where Evan Peters appeared in the MCU as Pietro. However, it was revealed that he was not Quicksilver at all, but a Westview resident named Ralph Bohner who was being magically controlled by the witch Agatha Harkness to manipulate a grieving Wanda. This was a playful nod to the Fox films and not a true alternate version of the character within the MCU.The X-Men
#4 (First Appearance), Avengers
#16 (Joins Avengers), Giant-Size Avengers
#1 (Wundagore Origin), Vision and the Scarlet Witch
Vol. 2 #4 (Magneto confirmed as father), House of M
#1-8 (Universe-altering event), Son of M
#1-6 (Depowered, Terrigenesis), Uncanny Avengers
Vol. 2 #1-5 (Parentage retconned).