As WandaVision prepares to go into its back half after pulling back the curtain on some of the show’s mystery in Episode 4, “We Interrupt This Program,” Elizabeth Olsen dropped a hint that a major MCU star could be popping up on the show. According to Olsen, fans have no idea who it is and the reveal will be on par with Luke Skywalker’s surprise appearance on the season two finale of The Mandalorian. Via TVLine: