The character referred to as ‘Teen’ in Agatha All Along is widely speculated to be Billy Kaplan, also known as Wiccan, a key figure from Marvel Comics and a member of the Young Avengers. He is one of the twin sons of Wanda Maximoff (the Scarlet Witch) and Vision. The magical sigil preventing him from speaking his name adds mystery but hints at his identity being tied to Billy.
In the comics, Billy is a mutant with powerful spellcasting abilities, similar to his mother, and his twin brother, Tommy (Speed), also has superhuman powers. Both siblings have deep ties to Wanda and Vision’s complex family history.
In the comics, Vision and Wanda’s relationship was initially complicated by the fact that Vision could not naturally reproduce. To fulfill Wanda’s desire for a family, Agatha Harkness, a powerful witch, played a significant role in magically creating Wanda’s children, William and Thomas.
These children were actually magical manifestations of parts of the demonic villain Master Pandemonium’s soul, which was a twist that added layers to the Scarlet Witch’s family dynamic and caused significant emotional turmoil for Wanda.
Despite being magical constructs, Wanda’s grief after the twins were reabsorbed into Master Pandemonium’s soul led her to temporary madness. This culminated in a series of events that included the destruction of Vision, the disbandment of the Avengers, and the House of M reality-altering saga, which reshaped the Marvel Universe.
These events deeply affected Wanda and also tied the twins’ existence to powerful cosmic forces like Mephisto, who had a hand in shaping their origins.
Eventually, the souls of Wanda’s twins were reincarnated as two human children, Billy Kaplan (Wiccan) and Tommy Shepherd (Speed). While raised separately, both developed mutant abilities: Billy with reality-warping spellcasting, and Tommy with super-speed.
They grew up to become part of the Young Avengers, a team that emerged following the Avengers’ disbandment. Their origin as the reincarnated children of Wanda and Vision became a major plot point in their storylines.
In their comic book appearances, Billy and Tommy often struggle to balance their powers and their family history. Their reunion with Wanda, who had been manipulated by Doctor Doom and others, led to a major arc involving restoring Wanda’s memories and her powers, as well as reuniting with their true origins.
These storylines explored themes of family, power, and identity, all while touching upon larger cosmic battles involving their mother and her quest for justice.
The twins’ story has been adapted and referenced in the MCU, starting with WandaVision, where both boys were rapidly aged and displayed some of their comic book powers.
However, their existence was revealed to be a result of Wanda’s reality-warping magic, and they ultimately faded away at the series’ conclusion, leaving Wanda heartbroken. This loss led to Wanda’s desperate attempts to reach alternate versions of Billy and Tommy across the multiverse in Doctor Strange in the Multiverse of Madness.
Agatha All Along picks up after Wanda’s apparent demise and follows the character of Agatha Harkness. In this series, the introduction of ‘Teen’—a character who is heavily implied to be Billy—adds intrigue. If this version of ‘Teen’ is indeed Billy, there are significant implications for the MCU.
His involvement in the magical realms and his possible role in resurrecting his mother, the Scarlet Witch, could have major consequences for future MCU storylines, particularly concerning the multiverse and the Young Avengers.
The Young Avengers team seems to be forming in the MCU, with characters like Kamala Khan (Ms. Marvel) and Kate Bishop (Hawkeye) already introduced.
The likely addition of Billy (Wiccan) to this team could signal a major shift in how these younger heroes will interact with the broader MCU, including their potential conflicts and connections with characters like Doctor Doom and even Kang the Conqueror, who is linked to the multiverse storyline. Fans are eagerly awaiting to see how Billy’s potential return and his role in Agatha’s magic may unfold in upcoming MCU episodes.