Marvel May Have Just Sneakily Introduced A New ‘Fantastic Four’ Character

What If is, inherently, a series about hypotheticals. Because of that, it’s hard to imagine a way that it can really affect the greater MCU canon. We can watch reported Lyonne had joined the cast of The Fantastic Four: First Steps in an undisclosed role. While playing a different voice and live-action role in the MCU isn’t unheard of — Linda Cardellini played Hawkeye’s wife Laura Barton but also voiced Lylla the otter in Guardians of the Galaxy Vol. 3 — the close gap between these two projects and Byrdie’s knowledge of the multiverse suggest this episode may be a prelude to Byrdie playing a bigger role in live-action.

This new character is the perfect example of why What If matters in the greater MCU. Much like how Captain Carter appeared (albeit briefly) in Doctor Strange in the Multiverse of Madness, this episode gives a greater introduction to this character before her live-action debut. Somehow, one of the silliest episodes of this season, following the MCU’s most unlikely pairing, may become the origin story for a key character within canon.

What If Season 3 is now streaming on Disney+.