The What If… ? voice cast for season 1, episode 1 includes Jeffrey Wright, Hayley Atwell and Samuel L. Jackson. This info article contains spoilers and character details for the episode “What If… Captain Carter Were the First Avenger?” Check out the Know the Cast section for more movie guides.

Now streaming on Disney+, What If… ? provides revisionist MCU history using alternate timelines. The multiverse stories are narrated by a mysterious Watcher, an original Marvel Comics character who simply observes what transpires. In the first series episode, the seriesexplores what might’ve happened if Peggy Carter, and not Steve Rogers, became the first super soldier during World War II. Here’s a Know the Cast breakdown for What If… ? 

Read More at VV — Know the Cast & Characters: ‘Spirited’

What If Voice Cast and Characters: Jeffrey Wright as The Watcher

Character Profile: The narrator who informs the audience about alternative realities. He watches events unfold across the cosmos but refuses to interfere. In the episode, he explains how Peggy’s spontaneous decision to take the super serum gave birth to a whole new history.

Wright’s Resume: Jean Michel Basquiat in Basquiat, Mr. Lies/Belize in Angels in America, Felix Leiter in Casino Royale, Beetee in The Hunger Games movie franchise, Bernard Lowe in Westworld

Read More at VV — Know the Cast & Characters: ‘1899’

What If Voice Cast: Hayley Atwell as Peggy Carter/Captain Carter

Character Profile: A British agent and Steve Rogers’ love interest. During World War II, she becomes a super solder after taking Project Rebirth’s Super Soldier Serum. Peggy becomes Captain Carter and gets transported 70 years into the future after battling an inter-dimensional squid-like creature.

Atwell’s Resume: Peggy Carter in the MCU, Bess Foster in The Duchess, Martha in Black Mirror “Be Right Back,” Ms. Clay in Blinded by the Light, Stacey Doyle in Criminal: UK

Read More at VV — Know the Cast & Characters: ‘Christmas with You’

What If Voice Cast: Josh Keaton as Skinny Steve Rogers

Character Profile: Peggy’s love interest. After failing to become a super soldier, he enlists Peggy to find his Brooklyn buddy Bucky Barnes. Skinny Steve later transforms into the Hydra Stomper but loses his suit during a climactic battle.

Keaton’s Resume: Young Hercules in Hercules, Shiro in Voltron: Legendary Defender, Ocelot in Metal Gear Solid 3: Snake Eater, Miguel in Elena of Avalor, Ant-Man in Avengers Assemble

Read More at VV — Know the Cast & Characters: ‘Off Track’

What If Voice Cast: Samuel L. Jackson as Nick Fury

Character Profile: A Colonel in the U.S. military who appears briefly at the end of the episode. When Peggy travels 70 years into the future, Nick Fury informs her that World War II ended long ago. He then asks if she’s OK as the episode ends.

Jackson’s Resume: Nick Fury in the MCU, Jules Winnfield in Pulp Fiction, Neville Flynn in Snakes on a Plane, Major Marquis Warren in The Hateful Eight, Darius Kincaid in The Hitman’s Bodyguard

Read More at VV — Know the Cast & Characters: ‘Smile’

What If Voice Cast: Jeremy Renner as Clint Barton/Hawkeye

Character Profile: An agent for the Strategic Homeland Intervention, Enforcement, and Logistics Division. He appears briefly in the climax alongside Nick Fury. Clint Barton is shocked to see Peggy Carter standing before him.

Renner’s Resume: Clint Barton/Hawkeye in the MCU, Jeffrey Dahmer in Dahmer, William James in The Hurt Locker, James Coughlin in The Town, Cory Lambert in Wind River

Read More at VV — Know the Cast & Characters: ‘Where the Crawdads Sing’

What If Voice Cast: Stanley Tucci as Dr. Erskine

Character Profile: A doctor who is responsible for the super serum. He asks Peggy if she’d like to watch Steve’s procedure from a booth, which sets in motion the inciting incident. Dr. Erskine’s demeanor contrasts with the more aggressive Colonel Flynn.

Tucci’s Resume: Abraham Erskine in the MCU, George Harvey in The Lovely Bones, Paul Child in Julia & Julia, Mitchell Garabedian in Spotlight, Caesar Flickerman in The Hunger Games Movie Franchise

Read More at VV — Know the Cast & Characters: ‘Tulsa King’

What If Voice Cast: Dominic Cooper as Howard Stark

Character Profile: Tony Stark’s father who develops the Hydra Stomper suit. He’s a self-described “buttons guy” who claims that he spent a romantic weekend with actress/inventor Hedy Lamarr. Howard is the creator of Stark Industries.

Cooper’s Resume: Howard Stark in the MCU, Allington in Band of Brothers, Milton Greene in My Week with Marilyn, Henry Sturges in Abraham Lincoln: Vampire Hunter, Jesse Custer in Preacher

Read More at VV — Know the Voice Cast & Characters: ‘The Bad Guys’

What If Voice Cast: Bradley Whitford as Colonel Flynn

Character Profile: A snarky military leader who talks down to Peggy and doesn’t believe that women should be soldiers. He’s the boss at Strategic Scientific Reserve. By the climax, Peggy turns the tables and keeps Colonel Flynn in check.

Resume: Eric Gordon in Billy Madison, Josh Lyman in The West Wing, Hadley in The Cabin in the Woods, Dean Armitage in Get Out

Read More at VV — Know the Cast & Characters: ‘The Wonder’

What If Voice Cast: Ross Marquand as Johann Schmidt/Red Skull

Character Profile: The Hydra head who plots against everybody. He wants to unleash an inter-dimensional force for world domination. In the climax, Red Skull gets crushed to death by his monster.

Marquand’s Resume: Red Skull in the MCU, Aaron in The Walking Dead, Paul Newman in Mad Men, Ethan Hunt in Robot Chicken, Rudy Connors in Invincible

Read More at VV — Know the Cast & Characters: ‘Falling for Christmas’

What If Voice Cast: Neal McDonough as Dum Dum Dugan

Character Profile: A member of the U.S. military unit known as the Howling Commandos. He’s locked in a Nazi cell with Bucky, and admires Captain Carter’s combat skills. Dum Dum escapes with the 107th and shows his appreciation for the Hydra Stomper.

McDonough’s Resume: Dum Dum Dugan in the MCU, Buck Compton in Band of Brothers, Fletcher in Minority Report, David McNorris in Boomtown, James Harding in Project Blue Book

Read More at VV — Know the Cast & Characters: ‘Causeway’

What If Voice Cast: Sebastian Stan as Bucky Barnes

Character Profile: Steve’s buddy from Brooklyn who joined the 107th. He’s rescued by Peggy and later steals a jeep. Like Dum Dum, Bucky admires Steve’s Hydra Stomper armor.

Stan’s Resume: Bucky Barnes/Winter Soldier in the MCU, Blaine in Hot Tub Time Machine, Carter Baizen in Gossip Girl, Andrew in Black Swan, Jeff in I, Tonya

Read More at VV — Know the Cast & Characters: ‘My Policeman’

What If Voice Cast: Toby Jones as Arnim Zola

Character Profile: A Swiss scientist who works for Hydra. He gets captured by Peggy and vows to say nothing about Bucky’s whereabouts. In a slick cut, Captain Carter reveals that Dr. Zola told her everything she needed to know.

Jones’ Resume: Arnim Zola in the MCU, Ollie Weeks in The Mist, Dobby in the Harry Potter Movie Franchise, Percy Alleline in Tinkor Tailor Soldier Spy, Claudius Templesmith in The Hunger Games Movie Franchise

Read More at VV — Know the Cast & Characters: ‘Blockbuster’

What If Voice Cast: Darrell Hammond as Nazi General

Character Profile: A German general who informs Johann Schmidt (Red Skull) that the Führer wants to see him in Berlin. He also trolls him about losing the Tesseract and for playing with “metal trinkets.” Hammond’s character then takes a bullet to the gut as Red Skull reveals himself.

Hammond’s Resume: A Former Saturday Night Live Cast Member, Robertson in Blues Brothers 2000, Father Muldoon in Scary Movie 3, Captain Jack Swallows in Epic Movie, The Deacon in Damages

Read More at VV — Know the Cast & Characters: ‘The Takeover’

What If Voice Cast: Isaac Robinson-Smith as Brick

Character Profile: A German officer who appears at the 10-minute mark. He describes Peggy as “fragile” and then gets whooped. Specifically, he takes a couple blows to the testicles and gets beat down again by Captain Carter.

Robinson Smith’s Resume: Daniel Johnston in Two Dollar Therapy, Floyd Ferguson in ThrillerGram

Read More at VV — Know the Cast & Characters: ‘Enola Holmes 2’

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In addition, the voice cast for “What If… Captain Carter Were the First Avenger?” includes Andreas Beckett (Transformers: Age of Extinction, Counterpart), David Cowgill (The Young and the Restless, Friday Night Lights), Terri Douglas (Frozen II, Raya and the Last Dragon), Matthew Lindquist (Moose), Arthur Ortiz (Spider-Man: Into the Spider-Verse, Frozen II), Helen Sadler (True Blood, Love, Death & Robots), Shane Sweet (Spies in Disguise, The Mitchells vs the Machines) and Matthew Wood (Frozen II, The Mandalorian). What If… premiered August 11, 2021 on Disney+.

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.