Every Actor & Character in What If…?
Other major credits includeAmerican Fiction,The French Dispatch, andBroken Flowers.
Fans can also see Mackie’s work inThe Hurt Locker,The Adjustment Bureau, andTwisted Metal.
However, unsurprisingly, that move goes horribly wrong and puts the planet in even more danger.
Ruffalo has portrayed the Hulk since 2012’sThe Avengers, appearing in 10 movies and shows overall with Marvel Studios.
His biggest non-MCU credits includeSpotlight,Foxcatcher, andNow You See Me.
This show will mark Parris' third MCU appearance afterplaying a leading role inThe Marvelsand a supporting role inWandaVision.
She can also be seen inDear White People,Chi-Raq, andIf Beale Street Could Talk.
Those looking for him in other projects can watchThe Apprentice,I, Tonya, andPam & Tommy.
is Harbour’s second of three MCU appearances as the Red Guardian, which includes 2025’sThunderbolts*.
Isaac appears as Moon Knight for the second time in the MCU after leadinghis ownMoon Knightsolo series.
Other major credits include the Star Wars Sequel Trilogy, Ex Machina, and Inside Llewyn Davis.
Season 3 is Hahn’s second MCU appearance of 2024 afterstarring inAgatha All Alongon Disney+.
Hahn’s work can also be seen inBad Moms,Parks & Recreation, andWe’re The Millers.
This show is the first time Nanjiani has been seen in the MCUsince his debut in 2021’sEternals.
Other major credits includeThe Big Sick,Stuber, andObi-Wan Kenobi.
Through that venture, he produces a new picture starring the powerful witch Agatha Harkness.
Cooper previously played Howard Stark inCaptain America: The First Avengerand Hayley Atwell’sAgent Carterseries.
D’Arcy previously played the human version of Jarvis inAgent Carteranda key flashback scene inAvengers: Endgame.
The English star is also notable for his roles inCloud Atlas,Oppenheimer, andDunkirk.
Fishburne previously played Bill Foster inWhat If…?Season 2andAnt-Man and the Wasp.
Ferrera was nominated for an Oscar for Best Supporting Actress afterher performance in 2023’s hit movieBarbie.
She is also known for her work inUgly Betty,Superstore, and theHow to Train Your Dragontrilogy.
Michael’s voiceover work can be heard inYoung Jedi Adventures,The Wild Robot, andArcane.
What If…?isDennings' fifth credit within the MCU, which also includesWandaVisionand three of the fourThormovies.
She can also be seen in2 Broke Girls,Nick and Norah’s Infinite Playlist, andCharlie Bartlett.
Hiddleston has nine appearances as Loki under his belt in the MCU, including both seasons ofLokion Disney+.
He also has appearances inHigh-Rise,Kong: Skull Island, andThe Night Manager.
Thompson has five credits in the MCU, includinga surprise cameo in 2023’sThe Marvels.
The actress is also known for theCreedtrilogy,Annihilation, andMen in Black: International.
Wong can also be seen and heard inAbominable,Helldivers II, andStar Trek: Lower Decks.
Fans can also see him inBarbie,Kim’s Convenience, andArthur the King.
Steinfeld previously played Kate Bishop inHawkeyeandin a pre-credits scene fromThe Marvels.
She is also the voice of Gwen Stacy in Sony’s animatedSpider-Versemovies, and she appeared inTrue GritandBumblebee.
Fans can see his other work in22 Jump Street,Overlord, andMonarch: Legacy of Monsters.
She can also be seen inThe Witcher.
Hayley Atwell - Captain Peggy Carter
Known asWhat If…?
’s leading character, Hayley Atwell will return for one final run as Captain Peggy Carter in Season 3.
Outside the MCU, fans can see her inThe Duchess,Christopher Robin, andMission: Impossible Dead Reckoning.
Isaacs is perhaps best known for his role as Lucius Malfoy in six of the first eightHarry Pottermovies.
He also has credits inStar Wars: Rebels,The Patriot, andMass.
Jacobs also played the role of Bonnie in Marvel Studios’Echo.
Other credits includeReservation Dogs,Backspot, andArk: The Animated Series.
She previously voiced the Storm character in bothX-Men: The Animated Seriesand 2024’sX-Men ‘97.
Outside of that, her role remains a mystery.
Sealy-Smith can also be heard and seen inThe Line,Delilah & Julius, andThis Is Wonderland.
New episodes of Marvel StudiosWhat If…?be released daily on Disney+ through Sunday, December 29.
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