We still don't know who Joe Locke is playing in Agatha All Along, as the Heartstopper actor says not all of your fan theories are correct: "Most people are very not on it"

Joe Locke in Agatha All Along.

If you sneak around the corners of social media, you might find yourself bewitched by the cauldron of fan theories bubbling away about Agatha All Along, the new Marvel show starring WandaVision's Kathryn Hahn return as the titular witch.

Chief among the whispers is the identity of Joe Locke's mysterious 'Teen'. Some fans believe he's playing one of Wanda's sons, Billy, who – in the comics, at least – would take on the mantle of hero Wiccan.