What If...?

Jeffrey Wright

The Watcher (voice) / Uatu / The Watcher (voice)

David Dastmalchian

Kurt

Dominic Cooper

Howard Stark

Jeff Goldblum

Grandmaster

Josh Brolin

Thanos

Michael Douglas

Ant-Man / Dr. Hank Pym

Michael Rooker

Yondu Udonta

Natalie Portman

Jane Foster

Neal McDonough

Dum Dum Dugan

Sean Gunn

Kraglin

Stanley Tucci

Dr. Abraham Erskine

Taika Waititi

Korg

Unknown

Korath

Hayley Atwell

Peggy Carter

Karen Gillan

Nebula

Mark Ruffalo

Hulk / Bruce Banner

Michael B. Jordan

Erik Killmonger

Sebastian Stan

Winter Soldier / Bucky Barnes

Frank Grillo

Brock Rumlow / Crossbones

Jeremy Renner

Clint Barton / Hawkeye

Toby Jones

Arnim Zola

Tom Hiddleston

Loki

Samuel L. Jackson

Nick Fury

Terri Douglas

Additional Voices (voice)

Matthew Wood

Additional Voices (voice)

Robin Atkin Downes

Additional Voices (voice)

Fred Tatasciore

Additional Voices (voice) / Drax / Corvus Glaive (voice) / Groot (voice) / Volstagg / Drax / Additional Voices (voice)

Josh Keaton

Skinny Steve Rogers (voice) / Steve Rogers (voice) / Steve Rogers / Captain America (voice) / Steve Rogers / Rogers Hood (voice) / Steve Rogers / The Hydra Stomper (voice)

Mick Wingert

Tony Stark (voice) / Tony Stark / Iron Man (voice)

Helen Sadler

Additional Voices (voice)

Benedict Cumberbatch

Doctor Strange (voice) / Doctor Strange / Strange Supreme (voice) / Doctor Strange / Strange-Supreme (voice) / Strange Supreme / Demon Strange (voice)

Debra Wilson

Additional Voices (voice)

Michael Ralph

Additional Voices (voice)

Lake Bell

Natasha Romanoff (voice) / Natasha Romanoff / Black Widow (voice)

Piotr Michael

Additional Voices (voice)

Chris Hemsworth

King Thor Odinson (voice) / Thor (voice)

Ross Marquand

Johann Schmidt / Red Skull (voice) / Ultron (voice) / Ultron / Sub-Ultron Sentries (voice) / Werner (voice)

Jon Favreau

Happy Hogan (voice) / Happy Hogan / Happy 'The Freak' Hogan (voice) / Happy Hogan / Zombie Happy (voice) / Sir Harold 'The Happy' Hogan / Happy 'The Freak' Hogan (voice)

Chadwick Boseman

Star Lord T'Challa (voice) / T'Challa / Black Panther (voice)

Dave B. Mitchell

Additional Voices (voice)

Shelby Young

Additional Voices (voice)

Arthur Ortiz

Additional Voices (voice)

Danai Gurira

Okoye (voice)

Seth Green

Howard the Duck (voice)

Clancy Brown

Surtur (voice)

June Christopher

Additional Voices (voice)

Alexandra Daniels

Carol Danvers / Captain Marvel (voice)

Kurt Russell

Ego (voice) / Ego / Ego's Computer / Ego's Army (voice)

Brian T. Delaney

Peter Quill (voice)

Kari Wahlgren

Additional Voices (voice)

Kimberly Bailey

Additional Voices (voice)

David W. Collins

Additional Voices (voice)

Matt Lowe

Additional Voices (voice)

Kimberly Bailey

Additional Voices (voice)

Isaac Robinson-Smith

Brick (voice) / Sergei / Additional Voices (voice)

Shane Sweet

Additional Voices (voice)

Paul Bettany

Jarvis (voice) / Vision (voice)

Paul Rudd

Scott Lang / Ant-Man (voice)

Tom Vaughan-Lawlor

Ebony Maw (voice)

David Boat

Additional Voices (voice)

Leslie Bibb

Christine Everhart (voice)

John Kani

T'Chaka (voice)

Don Fullilove

Additional Voices (voice)

Michael Patrick McGill

General Ross (voice)

Kat Dennings

Darcy (voice) / Darcy Lewis (voice)

Cobie Smulders

Maria Hill (voice)

Clark Gregg

Agent Coulson (voice)

Jaimie Alexander

Lady Sif (voice)

Rachel House

Topaz (voice)

Ashley Peldon

Additional Voices (voice)

Cynthia Kaye McWilliams

Gamora (voice)

Ozioma Akagha

Shuri (voice)

Chuck Billy

Additional Voices (voice)

Shondalia White

Additional Voices (voice)

Justin Shaw

Additional Voices (voice)

Justin Shaw

Additional Voices (voice)

Melanie Minichino

Additional Voices (voice)

Secunda Wood

Additional Voices (voice)

Scott Menville

Additional Voices (voice)

Elizabeth Olsen

Wanda Merlin (voice) / Wanda-Merlin (voice)

Devery Jacobs

Kahhori (voice)

Jeff Bergman

Odin (voice)

Cate Blanchett

Hela (voice)

Feodor Chin

Wenwu (voice) / Xu Wenwu (voice)

Marcella Lentz-Pope

Additional Voices (voice)

Max Mittleman

Fandral / Additional Voices (voice)

Darrell Hammond

Nazi General (voice)

Bradley Whitford

Colonel Flynn (voice)

Andreas Beckett

Additional Voices (voice)

David Cowgill

Additional Voices (voice)

Matt Lindquist

Additional Voices (voice)

Carrie Coon

Proxima Midnight (voice)

Djimon Hounsou

Korath (voice)

Benicio del Toro

The Collector (voice)

Chris Sullivan

Taserface (voice)

Ophelia Lovibond

Carina (voice)

Maddix Robinson

Young T'Challa (voice)

Tanya Wheelock

Female Ravager (voice)

David Sobolov

Additional Voices (voice)

Michael Woodley

Additional Voices (voice)

Stephanie Panisello

Betty Ross (voice)

Elisa Gabrielli

Additional Voices (voice)

David Michie

Additional Voices (voice)

Rachel McAdams

Christine Palmer (voice)

Benedict Wong

Wong (voice)

Tilda Swinton

The Ancient One (voice)

Ike Amadi

O'Bengh (voice)

Evangeline Lilly

Hope Van Dyne / Wasp (voice)

Emily VanCamp

Sharon Carter (voice)

Hudson Thames

Peter Parker / Spider-Man (voice)

Ashley Adler

Additional Voices (voice)

Matthew Yang King

Additional Voices (voice)

Mike Vaughn

Additional Voices (voice)

Angela Bassett

Queen Ramonda (voice)

Andy Serkis

Ulysses Klaue (voice)

Don Cheadle

Rhodey (voice)

Kiff VandenHeuvel

Obadiah Stane (voice)

Beth Hoyt

Pepper Potts (voice)

Khanya Mkhize

Additional Voices (voice)

Josette Eales

Frigga (voice)

David Chen

Hogun / Additional Voices (voice)

Kaitlyn Robrock

Additional Voices (voice)

Georges St-Pierre

Batroc (voice)

Max Mittelman

Fandral / Additional Voices (voice)

Peter Serafinowicz

Garthan Saal (voice)

Julianne Grossman

Nova Prime / Irani Rael

Jude Law

Yon-Rogg (voice)

Sam Rockwell

Justin Hammer (voice)

John Slattery

Howard Stark (voice)

Laurence Fishburne

Dr. Bill Foster / Goliath (voice)

Atandwa Kani

King T'Chaka / Black Panther (voice)

Madeleine McGraw

Hope van Dyne (voice)

Mace Montgomery Miskel

Peter Quill (voice)

Keri Tombazian

Dr. Wendy Lawson / Mar-Vell (voice)

Gene Farber

Karpov / Russian Handler (voice)

Arif S. Kinchen

Additional Voices (voice)

Matthew Waterson

Rusty (voice)

Anastasia Baranova

Additional Voices (voice)

Toby Larsen

Additional Voices (voice)

Luke Lowe

Additional Voices (voice)

Lucy Lowe

Additional Voices (voice)

Maggie Lowe

Additional Voices (voice)

Tessa Thompson

Valkyrie (voice)

Rachel Weisz

Melina (voice)

Bernard White

Councilman Singh (voice)

JB Blanc

Additional Voices (voice)

Jon Bailey

Additional Voices (voice)

Kim Mai Guest

Additional Voices (voice)

Salli Saffioti

Additional Voices (voice)

Kiawentiio

Wahta (voice)

Jeremy White

Atahraks / Additional Voices (voice)

Gabriel Romero

Conquistador Gonzolo (voice)

Carolina Ravassa

Queen Isabella of Spain (voice)

Iotsi'tsanien Goodleaf

Additional Voices (voice)

Ránikonhrí:io Lazare

Additional Voices (voice)

Sahawisó:ko' Arquette

Additional Voices (voice)

Tehtotsnháthe Lazare

Additional Voices (voice)

Tekanhé:kake Stacey

Additional Voices (voice)

Alexa Iekenhnhenhá;wi Montour

Additional Voices (voice)

Kahentinéhshon Alfred

Additional Voices (voice)

Richard Miro

Additional Voices (voice)

Christian Rodrigo

Additional Voices (voice)

Jordi Caballero

Additional Voices (voice)

Christopher Lee Pearson

Additional Voices (voice)

Ieronhienhawi Tatum McComber

Additional Voices (voice)

Carlos Reig-Plaza

Additional Voices (voice)

Lauren Tom

Jiayi (voice)

Idris Elba

Heimdall (voice)

Michael Hagiwara

Shunyuan (voice)

Liv Zamora

Young Hela (voice)

Vic Chao

Additional Voices (voice)

Karen Huie

Additional Voices (voice)

Paul Kwo

Additional Voices (voice)

James Taku Leung

Additional Voices (voice)