Table of Contents

Speed (Thomas Shepherd)

Part 1: The Dossier: An At-a-Glance Summary

Part 2: Origin and Evolution

Publication History and Creation

Thomas “Tommy” Shepherd was created by writer Allan Heinberg and artist Jim Cheung, making his first full appearance in Young Avengers #10 (March 2006). He was introduced as part of the second wave of Young Avengers recruits, conceptually designed to be a spiritual successor to Quicksilver, mirroring his powers and even his signature white hair. However, the foundation of his character is far older and more complex, tracing its roots back to the 1980s. The story of the Scarlet Witch's twin sons, Thomas and William, was first told by writer Steve Englehart in Vision and the Scarlet Witch Vol. 2 #12 (September 1986). The subsequent erasure of these children from existence in the Avengers West Coast storyline was a traumatic event that became a cornerstone of Wanda Maximoff's character, directly leading to her mental instability and the universe-altering events of Avengers Disassembled and House of M. Heinberg and Cheung's masterstroke was not in creating a new speedster, but in resurrecting this decades-old, tragic plot point, giving it new life and consequence through the characters of Tommy Shepherd and Billy Kaplan. This transformed a painful piece of continuity into one of the most compelling and emotionally resonant character quests of the 21st century.

In-Universe Origin Story

The origin of Tommy Shepherd is one of the most convoluted and magical in Marvel Comics, spanning decades of retcons, cosmic revelations, and immense personal tragedy. It is a story of a mother's desperate love, demonic interference, and the ultimate triumph of a soul's will to exist.

Earth-616 (Prime Comic Universe)

The story of Speed begins not with his birth, but with his conception as a magical construct. The scarlet_witch, desperate for the normal life and family she was denied, used her reality-warping hex powers to magically conceive twin sons with her synthezoid husband, the_vision. These children, named Thomas and William, were seemingly healthy and real. However, it was later revealed that Wanda's power was not sufficient to create life from nothing; she had unconsciously drawn upon ambient magical energy, borrowing two missing fragments of the soul of the demon lord Mephisto, which he had lost in a prior battle with Franklin Richards. This demonic origin proved to be their undoing. When the villain Master Pandemonium sought to reclaim his own fragmented soul, which he believed the twins to be, he inadvertently reabsorbed them into his being. This led to a confrontation where Mephisto fully reformed, revealing the twins' true nature and reabsorbing the soul fragments, effectively erasing Thomas and William from existence. The trauma of this loss was so profound that Agatha Harkness, Wanda's mentor, cast a spell to make her forget she ever had children, a spell that would eventually fail with catastrophic consequences for the entire universe. Years later, the souls of Thomas and William, though separated from Mephisto, were not destroyed. They were eventually reincarnated as two separate boys, born to different families: William “Billy” Kaplan and Thomas “Tommy” Shepherd. Tommy Shepherd grew up in Springfield, New Jersey, raised by Frank and Mary Shepherd. His life was unstable and troubled, moving from one foster home to another. His powers of super-speed manifested early, leading to destructive incidents, such as accidentally vaporizing his school. This landed him in a high-security juvenile detention facility, where he was subjected to extensive experimentation by corporate interests seeking to create a living weapon. His life changed forever when the young_avengers, guided by the Vision's “Avengers Fail-Safe Program,” identified him as a potential new hero. The team, including his own unwitting twin brother Billy Kaplan (now the hero wiccan_billy_kaplan), broke him out of the facility. The immediate, uncanny resemblance between Tommy and Billy, coupled with their complementary power sets mirroring Quicksilver and the Scarlet Witch, made their connection undeniable. Tommy, initially hesitant and cynical, quickly adopted the codename Speed and embraced his role on the team, his brash and impulsive nature a stark contrast to Billy's more thoughtful and anxious personality. Their search for their biological mother, the Scarlet Witch, would go on to define their lives and trigger the universe-spanning event known as The Children's Crusade.

Marvel Cinematic Universe (MCU)

In the Marvel Cinematic Universe, Tommy's origin is both thematically similar and logistically very different, presented entirely within the 2021 Disney+ series WandaVision. This version of Tommy, and his brother Billy, are not reincarnated souls but are instead direct, tangible creations of Wanda Maximoff's immense Chaos Magic. Following the death of the Vision in Avengers: Infinity War, a grief-stricken Wanda travels to Westview, New Jersey, a town where Vision had purchased a plot of land for them to build a home. Overwhelmed by her sorrow, Wanda unleashes a torrent of Chaos Magic, creating a massive hexagonal energy field—the “Hex”—that rewrites the reality of the entire town and its inhabitants. Inside this Hex, she creates an idealized sitcom-inspired life, which includes resurrecting a version of the Vision and spontaneously conceiving and giving birth to twin sons, Tommy and Billy. Unlike in the comics, where their infancy was relatively normal (barring the demonic soul-shard issue), the MCU's Tommy and Billy exhibit unnatural abilities from the start. They are able to age themselves up at will, progressing from infants to ten-year-olds in a matter of days to avoid the parts of childhood they find inconvenient. Tommy's personality is established as hyperactive, mischievous, and impatient, a classic speedster archetype. His powers manifest during a Halloween episode, where he gains super-speed, joyfully using it to collect candy and play pranks. His costume for Halloween is a direct homage to Quicksilver's classic comic book attire. The critical difference is their existential dependence on the Hex. As creations of Wanda's spell, they cannot survive outside of it. When Wanda is forced to confront her grief and dismantle the Hex to free the citizens of Westview, both Vision and their sons begin to disintegrate. In a heartbreaking farewell, Wanda tucks them into bed, thanking them for choosing her to be their mom, and as the Hex recedes, they vanish. However, the story does not end there. In the final post-credits scene of WandaVision, Wanda, now in seclusion and studying the Darkhold, hears the faint cries of her sons calling out for help from somewhere across the multiverse. This plot point is revisited in Doctor Strange in the Multiverse of Madness, where Wanda's primary motivation for hunting America Chavez is to steal her powers so she can travel to a universe where her boys are real and alive. This confirms that while the Westview versions of Tommy and Billy are gone, their essence or other multiversal counterparts persist, leaving the door wide open for a future, more permanent introduction of the character into the MCU.

Part 3: Powers, Abilities & Personality

While both major incarnations of Tommy Shepherd are defined by super-speed, their powersets and personalities have been explored to vastly different degrees.

Earth-616 (Prime Comic Universe)

Tommy's powerset in the comics is a direct and potent inheritance from his maternal uncle, Quicksilver, but with a unique and dangerous twist.

Marvel Cinematic Universe (MCU)

The MCU's Tommy is a much younger and less developed character, with his powers and personality reflecting his age and unique circumstances.

Part 4: Key Relationships & Network

Core Allies

Arch-Enemies

Affiliations

Part 5: Iconic Events & Storylines

Young Avengers: Family Matters

This storyline details Speed's formal introduction to the Marvel Universe. After being identified by the Vision's fail-safe program, the Young Avengers break Tommy out of a government facility. It is here that he meets Billy Kaplan for the first time, and their shocking resemblance immediately raises questions. The team is soon caught between the warring Kree and Skrull empires, with the Super-Skrull revealing that Tommy and Billy's powers and appearances are identical to those of the Scarlet Witch and Quicksilver. This arc solidifies Tommy's place on the team, gives him his codename, and sets him and his brother on the path to discovering their true parentage.

Civil War

When the Superhuman Registration Act is passed, dividing the hero community, the Young Avengers refuse to register. They join Captain America's underground resistance movement, becoming key operatives in his fight against Iron Man's pro-registration forces. Tommy's speed made him an invaluable asset for reconnaissance, rapid-response attacks, and rescues. This event was a crucible for the young team, forcing them to make difficult ethical choices and cementing their status as legitimate heroes willing to fight for their beliefs, even against their idols.

The Children's Crusade

This is arguably the most important storyline in Speed's history. The nine-issue series follows the Young Avengers as they embark on a globetrotting, reality-bending quest to find the Scarlet Witch, who has been missing since the events of House of M. Their journey puts them in direct conflict with the Avengers, the X-Men, Doctor Doom, and Magneto. For Tommy, this was the culmination of his life's greatest question. The event confirmed that he and Billy were indeed the reincarnated sons of Wanda, but their reunion was cut short by a massive battle. The story ends with the tragic death of his teammate Stature and the apparent destruction of the Vision, but it succeeds in restoring Wanda's memory and powers, bringing her back into the world and giving Tommy and Billy the mother they had always searched for.

Part 6: Variants and Alternative Versions

See Also

Notes and Trivia

1) 2) 3) 4) 5) 6)

1)
Thomas “Tommy” Shepherd's first cameo appearance was in Young Avengers #10 (March 2006), with his first full appearance in Young Avengers #12 (August 2006).
2)
The question of whether Speed and Wiccan are mutants is a long-standing debate. As the sons of the Scarlet Witch (who for years was considered the daughter of Magneto and a mutant herself), they were long assumed to be mutants. However, Wanda's origin was retconned to be a result of the High Evolutionary's experiments, not mutant genetics. Combined with their souls' magical origins, their status remains ambiguous. They are often referred to as “magic-based” superhumans rather than genetic mutants.
3)
Tommy's white hair is a direct visual nod to his uncle, Quicksilver, and his maternal grandfather, Magneto, both of whom have white or silver hair.
4)
In the comics, Speed is bisexual and was in a confirmed romantic relationship with his teammate David Alleyne, the hero known as Prodigy. This was a significant point of character development for him.
5)
The names “Thomas” and “William” have a deeper connection in Marvel lore. They are also the names of the two children of the Golden Age hero, the Vision (Aarkus), and are shared by the “sons” of the Salem's Seven's leader, Nicholas Scratch, hinting at a complex web of thematic connections revolving around magically-created children.
6)
In the MCU, the actor who plays ten-year-old Tommy, Jett Klyne, also plays the role in Doctor Strange in the Multiverse of Madness as the Earth-838 version of the character.