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The Best Episodes of 'What If... ?'

Updated October 6, 2021 4.6k votes 991 voters 10.1k views9 items

List RulesVote up your favorite episodes of What If... ? to air.

The world of the MCU and Marvel invites the imagination, and it’s nice to see that it isn’t just fans who wonder, “What if?” There are so many possible episodes of What If...?, thanks to the long-running Marvel comics series of the same name that speculates about alternate worlds and possibilities, but which stories really stand out? Is it Peggy Carter as Captain America that is the alternate world you want to see, or is it a Star-Lord T’Challa?

What If...? is an animated anthology series created by A.C. Bradley and premiered on August 11, 2021, on Disney+, making it the fourth television series in the Marvel Cinematic Universe. Part of Phase Four of the MCU, What If...?, had been waiting in the wings until the end of the Infinity Saga, which allowed for more possible branching paths of story - something they'd already prepared audiences for with the world(s) of Loki. With many MCU actors returning to voice their characters, What If...? episodes play with possibilities.

Vote up your favorite episodes of What If...?, and vote down any that just don't pan out, despite how much you love the series as a whole or how good the initial idea of the episode was. It can be difficult to put one What If...? episode over the other when there are so many good ones, which is why you can vote on however many episodes you like.

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    What If... Doctor Strange Lost His Heart Instead of His Hands?

    Photo: Disney+

    What changes?

    The pivotal car crash leaves Dr. Stephen Strange intact, but takes with it Dr. Christine Palmer - sending Strange to Kamar-Taj in grief and with a desire to manipulate time with the Eye of Agamotto.

    How does it end?

    The car crash is revealed to be an absolute point, one that Strange cannot affect. And, when he persists, the Ancient One calls upon the Dark Dimension, creating two timelines with two Dr. Stranges. The subsequent battle and reversed time tears apart the universe.

    Which MCU actors voiced characters?

    Benedict Cumberbatch (Dr. Strange), Rachel McAdams (Christine Palmer), Benedict Wong (Wong), and Tilda Swinton (The Ancient One), and Leslie Bibb (Christine Everhart) all returned to voice their MCU characters.

    • Original Airing: September 1, 2021
    • Season: 1
    • Episode Number: 4
  • 2
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    27

    What If... Ultron Won?

    Photo: Disney+

    What changes?

    After defeating the Avengers, Ultron, with the Mind Stone and Vision's body, takes out Thanos the moment he arrives on Earth and takes his five Infinity Stones. With a drone army created with the stones Ultron sets out to eradicate life across the universe.

    How does it end?

    Carol Danvers, Clint Barton, and Natasha Romanoff, the only survivors, try every method of attack they can think of to defeat Ultron, including uploading Arnim Zola's consciousness into a drone, but to no avail. On discovering the multiverse, Ultron's attacks on the Watcher sends him to Strange Supreme for help.

    Which MCU actors voiced characters?

    Jeremy Renner (Hawkeye) and Benedict Cumberbatch (Strange Supreme), and Toby Jones (Arnim Zola) returned to voice their MCU characters. Black Widow is voiced by Lake Bell, Tony Stark is voiced by Mick Wingert, Carol Danvers is voiced by Alexandra Daniels, and Steve Rogers is voiced by Josh Keaton in this episode. Ross Maquand, who played Red Skull in Avengers: Endgame and Avengers: Infinity War, voices Ultron and the Sub-Ultron Sentries in this episode.

    • Original Airing: September 29, 2021
    • Season: 1
    • Episode Number: 8
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    What If... Zombies?!

    Photo: Disney+

    What changes?

    When Hank Pym saves Janet van Dyne from the Quantum Realm, they return with a virus that turns people into zombies - resulting in a disaster that leaves only a handful of heroes alive.

    How does it end?

    Vision, who had been feeding survivors to an infected Wanda Maximoff reveals the Mind Stone has the power to cure the zombie virus. As the final survivors, Peter Parker, Scott Lang, and T'Challa return to Wakanda to broadcast the cure across the planet, they find it besieged by a zombified Thanos and his horde.

    Which MCU actors voiced characters?

    Mark Ruffalo (Bruce Banner), Chadwick Boseman (T'Challa), Paul Bettany (Vision), Sebastian Stan (Bucky Barnes), Evangeline Lilly (Hope Van Dyne), Jon Favreau (Happy Hogan), Paul Rudd (Scott Lang), Danai Gurira (Okoye), Emily VanCamp (Sharon Carter), and David Dastmalchian (Kurt) all returned to voice their MCU characters. Peter Parker is voiced in this episode by Hudson Thames and Steve Rogers is voiced by Josh Keaton.

    • Original Airing: September 8, 2021
    • Season: 1
    • Episode Number: 5
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    "What If... the World Lost Its Mightiest Heroes?"

    Photo: Disney+

    What changes?

    Over a week, potential Avengers are assassinated, or lost in unexpected accidents before Nick Fury can recruit them, in what originally appears to be the work of S.H.I.E.L.D agents.

    How does it end?

    Nick Fury and Loki team up to find the true culprit and put them in Asgardian custody. Loki remains on Earth to rule while Nick Fury finds Steve Rogers and Carol Danvers.

    Which MCU actors voiced characters?

    Tom Hiddleston (Loki), Samuel L. Jackson (Nick Fury), Clark Gregg (Agent Coulson), Jeremy Renner (Clint Barton), Frank Grillo (Brock Rumlow), Jaimie Alexander (Lady Sif), Mark Ruffalo (Bruce Banner), and Michael Douglas (Hank Pym) all returned to voice their MCU characters. Tony Stark is voiced in this episode by Mick Wingert and Natasha Romanoff is voiced by Lake Bell.

    • Original Airing: August 25, 2021
    • Season: 1
    • Episode Number: 3