As WandaVision heads into its finale, with the penultimate episode having answered many fan questions, one big question remains. Who exactly is Evan Peters' Pietro Maximoff

Pietro Maximoff debuted as Wanda's brother as the speedster Quicksilver in Avengers: Age of Ultron played by Aaron Taylor-Johnson, but he was killed off during the film's final battle. Meanwhile, another verson of Quicksilver simultaneously appeared in the Fox X-Men franchise played by Evan Peters.

The concluding moments of the series' fifth episode revealed the surprise “recast” of Evan Peters' as the MCU's Quicksilver, despite the fact the in-universe characters were aware of the change of appearance.

Fans are now aware the character was in fact not Pietro and was instead somebody else playing the character being controlled by Agatha Harkness. However, it is still yet to be answered whether the imposter is the Fox-based Quicksilver having traveled across the multiverse, or someone else altogether. 

The fake Pietro — or “Fietro” — was last seen sneaking up on Monica Rambeau outside Agatha's house, leaving the door open for his return in the finale; this is a plot point the director is now teasing to come back into play...

A NEARLY UNEXPECTED SURPRISE

Fandom had the chance to interview WandaVision director Matt Shakman and asked him several questions regarding Evan Peters' role as the fake Pietro Maximoff/Quicksilver in the series.

The Marvel director commented on the opportunity to include Peters in the series saying it was an “early idea” he was “thrilled” they were able to include:

“I was so super excited. I’m a huge fan of Evan and he’s amazingly talented. I was thrilled that we were able to make that work. That was an early idea that we had to really make sure we did right. It was thrilling to get him in the show.”

Shakman mentioned the difficulty of keeping the fake Quicksilver's role in WandaVision quiet to avoid the surprise cameo leaking. The filmmaker joked they had to “hide him under capes and towels,” but they didn't “quite make it to airdate,” the director said referring to the character's leaked appearance several days prior to release:

“We had to hide him under capes and towels and all sorts of stuff to keep that secret for as long as we could. We didn’t quite make it to airdate with that secret a secret but we did our best!”

Recent episodes and the iconic "Agatha All Along" song revealed Agatha possessed someone to impersonate Pietro to trick Wanda into revealing the secrets of Westview. The interviewer asked a fan question regarding if the finale would answer exactly who “Fietro” is, to which Shakman teased “a little more” of Evan Peters:

“I think there’s a strong possibility you might get a little more of Evan Peters coming up. But how that plays out, I wouldn’t want to say.”

FOX QUICKSILVER OR SOMEONE ELSE?

With a supposed 50-minute run time on WandaVision's series finale, there are a lot of questions left to answer. Many have theorized Wanda's reality-altering actions in creating her Westview bubble will have disastrous effects in opening up the multiverse, setting up the upcoming Doctor Strange sequel she will appear in.

The new version of Pietro coming from the old Fox X-Men universe would be an exciting way to introduce the multiverse for hardcore Marvel fans who are familiar with both versions of the mutant hero. This would have huge implications for the MCU as it would mark the first appearance of a mutant in the universe and an exciting way to first take advantage of Disney's acquisition of 20th Century Fox.

Whatever the explanation, be it an epic-crossover or a fun meta-joke, WandaVision is sure to bring plenty of surprises in its final episode when it debuts on Disney+ this Friday.