Agatha All Along Episode 6 “Familiar by Thy Side” was the much-needed flashback episode, which explains how Billy Maximoff went from being a little superpowered boy conjured up by Wanda Maximoff’s Hex ...
Through this research, and a clandestine meeting with Ralph Bohner (Evan Peters), Billy eventually begins to discover his true identity — and the role that Agatha Harkness could have in helping him ...