Exclusive: WandaVision and Agatha All Along creator Jac Schaeffer discusses the last time Agatha Harkness told the truth and the one Marvel character she couldn't live without.

However, none of us expected that to involve a cameo from a surprise character from MCU history: Ralph Bohner, played once again by Evan Peters ... Wanda is now dead, and S.W.O.R.D. used Vision ...