Billy Maximoff's backstory unfolds in 'Agatha All Along' episode five

In the fifth episode of "Agatha All Along," the character known as Teen is revealed to be Billy Maximoff, the son of Wanda Maximoff. This episode shows Billy confronting Agatha about the death of a protective witch, highlighting his magical abilities. Billy was first introduced in "WandaVision" as one of Wanda's magically created twins. After Wanda ends her hex, Billy and his brother Tommy disappear. The series hints at Billy's identity through magical clues and his connection to Agatha. In the comics, Billy, also known as Wiccan, is a member of the Young Avengers with powers of energy manipulation. The series raises questions about the fate of his brother Tommy and whether Billy is searching for him.