Teenager revealed as Billy, aka Wicca and Wanda's son

SPOILER ALERT: This story discusses major plot developments in Season 1, Episode 5 of Agatha All Along, currently streaming on Disney+.

Practically since it was announced that Heartstopper star Joe Locke was joining the cast of Agatha All Along, Marvel fans have been happily speculating about who Locke's character might be. At the very end of Wednesday night's episode “Darkest Hour/Wake Thy Power,” the show effectively confirmed that Locke was indeed playing who the vast majority of fans agreed was the most likely candidate: Wicca.

Before this revelation occurs, a lot happens in a surprisingly short space of time. Agatha (Kathryn Hahn) becomes possessed by the spirit of her mother Evanora (Kate Forbes) during a Witches' Road trial reminiscent of 1980s teen horror films. When Alice (Ali Ahn), freshly freed from her family curse, uses her magic to free Agatha from possession, Agatha begins to drain all of Alice's powers. The only thing that stops Agatha is when Locke's character – still referred to as “Teen” in the credits – screams the name of Agatha's dead child, Nicholas Scratch, and she hears a child's voice say, “Mama! Stop!”

Unfortunately, it's too late for poor Alice: Agatha has drained her to death. Teen is devastated and lashes out at Agatha, who protests – seemingly sincerely – that she couldn't control her ability to steal Alice's powers. The teenager is not convinced.

“You wanted her power,” he says. “That’s what you’ve always been about, hasn’t it?”

Before Agatha can answer, Jennifer (Sasheer Zamata) answers for her: “Of course it is. That's what this is about – for each of us.”

“So this is what it means to be a witch?” Teen says back to Agatha. “Killing people to serve your own agenda? No. Not for me.”

Teen's righteousness changes Agatha's entire behavior. She seems to regard Teen with new understanding, laughing to herself with an evil grin before leaning in towards him.

“You’re so much like your mother,” she says, as if it’s an accusation.

In a way, it is: As Marvel fans and eagle-eyed viewers have suspected by now, Agatha is referring to Wanda Maximoff, aka the Scarlet Witch, who in “WandaVision” created her sons Billy and Tommy out of magic just for her disappear from existence when Wanda had to give up her fantasy world. Agatha has clearly come to the conclusion that Billy – who, like his mother, showed an aptitude for magic as a child – has somehow returned.

Unfortunately for Agatha, she is right. Teen's hands begin to sparkle with pale blue magic, which orders Jennifer and Lilia (Patti LuPone) to grab Agatha and throw her into the dirt just outside Witch Street. Agatha is quickly sucked underneath; In a fit of anger, Teen also throws Jennifer and Lilia into the dirt. In the final shot of the episode, Teen looks on with an enigmatic expression, and a crown suddenly appears on his head, strikingly similar to the crown Wanda wore as the Scarlet Witch.

So, yes, Teen is actually Billy, who takes on the superhero moniker Wicca in the Marvel comics. But while “Darkest Hour / Wake Thy Power” solves the series' biggest mystery, it also raises a whole new set of tantalizing questions.

Before this moment, Teen/Billy acted as if he had no innate magical abilities at all. Was that just a ruse? Or did Agatha awaken something in him by summoning Wanda? Was Billy the one who placed the seal that prevented the other witches from learning his true identity – and if not, who knew? Did Billy already know who his mother really is, or is this revelation as much of a surprise to him as it is to his (now underground) circle? How did Billy comes back out of nowhere? Has Billy's brother Tommy also returned? Do Billy's parents – Jeff and Rebecca Kaplan (Paul Adelstein and Maria Dizzia) – know who he really is? And where the hell is Rio Vidal (Aubrey Plaza)?!

“Agatha All Along” will likely answer many of these questions over its final four episodes. In the comics, Billy's origins are wrapped up in some really weird magical metaphysics: When Wanda created him, she might – or maybe not! – accidentally used a fragment of the soul of Mephisto, Marvel's version of the devil. After Billy's body falls into oblivion – which may or may not have been Mephisto's fault – his soul essentially attaches itself to another, random child. But the Marvel Cinematic Universe has never dabbled in anything so outlandish, and since alternate versions of Billy were introduced in 2022's Doctor Strange in the Multiverse of Madness, the series could instead opt for a more multiverse explanation of Billy's resurrection.

However, where Billy came from seems to be much less important than the fact that he returned at all. Even a cursory search of social media shows that while most hardcore fans had already figured out Teen's identity, it was still exciting to have it confirmed through the show. While the MCU has begun to incorporate real LGBTQ representation in recent years, Billy is something new: a queer superhero who is central to their project and integral to the ongoing MCU storyline (unlike Phastos from “Eternals” and Korg from “Thor”): Love and Thunder”); whose sexuality isn't just a conduit for profane comedy (unlike Deadpool); and whose LGBTQ identity isn't so vaguely referenced as to barely exist (unlike America from “Multiverse of Madness” and Valkyrie from “Thor: Ragnarok”).

In other words, Billy is a powerful and consistent Marvel character who is also unmistakably gay. And there is so much more of his story to tell.