Episode 5 gave us the answer we’ve been waiting for.
Warning: This article contains spoilers fromAgatha All Alongepisode 5, “Darkest Hour, Wake Thy Power.”
No more witchy sigils.Agatha All Alongfinally reveals the mystery behind Joe Locke’s Teen.

Joe Locke and Kathryn Hahn in ‘Agatha All Along’.Chuck Zlotnick/Marvel
To that, an enraged Teen reveals he isn’t as powerless as he originally appeared.
Chuck Zlotnick/Marvel
It seems to be one of those “worst kept secrets.”
It’s a similar situation Hahn found herself in withWandaVision.

Billy Kaplan/Wiccan of Marvel comics.Marvel
“It’s about how we peel back the layers,” she said.
“It’s our job to make the reveals exciting and satisfying.
We’re finally at a point in the series where we’re getting that how.

Joe Locke’s Billy Kaplan in ‘Agatha All Along’; Julian Hilliard’s Billy in ‘WandaVision’.Marvel (2)
On the surface, the backstory looks simple.
Billy was born to parents Jeff and Rebecca Kaplan.
(That’s what we mean by a head-scratcher.)

The Young Avengers of Marvel comics.
Part of that magic involved the creation of two children.
Three years later, in the timeline of sequel seriesAgatha All Along, we meet Locke’s Teen.
(Show us a body, damnit!)
We might also already have Teddy/Hulkling.
Agatha All Alongcontinues to roll out Wednesday nights on Disney+, and so do the theories.