Agatha All Along: how did Teen become Billy Maximoff?

Familiar by Thy Side, the sixth episode of Agatha All Along (2024), the Disney+ series starring Kathryn Hahn and Joe Locke, answered the question episode five raised: who Teen really is. That little crown across his head in episode five looked very Wanda Maximoff, and this episode confirmed it. Teen is Billy Maximoff, living in the body of a boy named William Kaplan. Our verdict: a fun, fast episode that gave us much of his backstory in one go.

We came back from a trip and got to see episodes five and six together, so we were glad we didn't have to wait a week for this answer.

Teen's 13th birthday and the fortune teller who put the sigil on him

The episode opens on a flashback party for William at 13, which was not the direction we expected. His parents' speech felt like it "almost looks too wholesome to be true," and there was a thought that Wanda or someone could have used magic to trap them, though it might not be the case.

A fortune teller in a tent tells him his lifeline is broken in two and draws the Tower reversed. She slips something into his jacket, which knocked down a theory about the book. She turns out to be Lilia, and the reaction was surprise: the guess had been Wanda or maybe Agatha.

The Westview anomaly, the car crash and William Kaplan's body

News of the shrinking Westview anomaly sends everyone home, and the family car crashes. William wakes up not knowing who he is. The read in the discussion was that Billy's soul went into William's body. He hears voices, and in his room sits a shelf of Wizard of Oz figurines.

Three years later he tells his boyfriend he died that night and came back different, which ties back to the split lifeline. He never remembered anything before the accident and only pretended to recover so his parents wouldn't worry. One surprise was that the show chose such a simple explanation for how Billy survived.

Ralph Bohner's cameo and Agatha Harkness in the bog

Billy's research leads him to a Reddit contact who turns out to be Ralph Bohner, who warns that Agatha Harkness will mess you up. The cameo was guessed before it landed, and in the discussion it was called the biggest cameo so far, aside from Wanda herself.

Billy's attempt to release a Westview resident from the spell produced laughs, including a garden hose mistaken for a gun and the line "I do not want to poke the bear." When Billy declares himself Billy Maximoff, Agatha pulls herself out of the mud, saying he and his mother share the same tell. Billy wants to find his brother Tommy.

What we expected next for Jen, Lilia and Alice

If Agatha escaped the bog, there was no reason the others couldn't, so the feeling was that Jen and Lilia aren't done. Alice might be the only one not coming back, though there was a thought Agatha could even revive her.

At the time it was believed nine episodes were planned, leaving three. The trailers showed a Wizard of Oz style trial, and with Agatha's trial done, maybe that was Billy's, given those figurines. There was also a guess that the boyfriend's actor appeared in Smile, pending an IMDb check.

Rio and the Salem Seven still loomed, but the plan was to hold off on theories and be pleasantly surprised. With this episode tying up so many loose ends, the story was free to move forward.