The show is called Agatha All Along, but Agatha Harkness (Kathryn Hahn) certainly isn’t the only Marvel star showing up. As of episode 6, “Familiar by Thy Side,” we now officially have Billy Maximoff, ...
but it would be nice to see Insomniac's take on some other Marvel heroes popping up in Wolverine as side characters. The specifics would really depend on the story Insomniac wants to tell ...