What If…? flips the script on the MCU by reimagining events from the films in unexpected ways.
Trailer
Season Main Cast
Jeffrey Wright
voices Uatu the Watcher
Samuel L. Jackson
voices Nick Fury
Sebastian Stan
voices Bucky Barnes
Chris Hemsworth
voices Thor
Mark Ruffalo
voices Bruce Banner / Hulk
Tom Hiddleston
voices Loki
Frank Grillo
voices Brock Rumlow
Chadwick Boseman
voices T'Challa
Jon Favreau
voices Happy Hogan
Karen Gillan
voices Nebula
Taika Waititi
voices Korg
Toby Jones
voices Arnim Zola
Kurt Russell
voices Ego
Seth Green
voices Howard the Duck
Danai Gurira
voices Okoye
Josh Brolin
voices Thanos
Paul Rudd
voices Scott Lang / Ant-Man
Dominic Cooper
voices Howard Stark
Stanley Tucci
voices Dr. Abraham Erskine
Jeff Goldblum
voices Grandmaster
Michael Rooker
voices Yondu Udonta
Tom Vaughan-Lawlor
voices Ebony Maw
Clark Gregg
voices Agent Phil Coulson
Jaimie Alexander
voices Lady Sif
Leslie Bibb
voices Christine Everhart
Kat Dennings
voices Darcy Lewis
Cobie Smulders
voices Maria Hill
Rachel House
voices Topaz
Ross Marquand
voices Ultron
Sean Gunn
voices Kraglin Obfonteri
Natalie Portman
voices Jane Foster
David Dastmalchian
voices Kurt
Djimon Hounsou
voices Korath the Pursuer
Chris Sullivan
voices Taserface
Darrell Hammond
voices Nazi General
Ophelia Lovibond
voices Carina
Carrie Coon
voices Proxima Midnight
Rachel McAdams
voices Christine Palmer
Benedict Wong
voices Wong
Tilda Swinton
voices The Ancient One
Paul Bettany
voices Vision
Emily VanCamp
voices Sharon Carter
Angela Bassett
voices Queen Ramonda
Andy Serkis
voices Ulysses Klaue
Don Cheadle
voices Rhodey
Paul Bettany
voices Jarvis
Ross Marquand
voices Sub-Ultron Sentries