What If...?

Jeffrey Wright

The Watcher (voice)

Terri Douglas

Additional Voices (voice)

Matthew Wood

Additional Voices (voice)

Fred Tatasciore

Groot (voice)

Robin Atkin Downes

Additional Voices (voice)

Shelby Young

Additional Voices (voice)

Debra Wilson

Additional Voices (voice)

Dave B. Mitchell

Additional Voices (voice)

Helen Sadler

Additional Voices (voice)

Piotr Michael

General Dreykov (voice)

Hayley Atwell

Captain Carter / Peggy Carter (voice)

Sebastian Stan

Bucky Barnes (voice)

Josh Keaton

Skinny Steve Rogers (voice)

Samuel L. Jackson

Sir Fury (voice)

Mick Wingert

Tony Stark / Iron Man (voice)

Kari Wahlgren

Melina Vostkoff (voice)

Michael Ralph

Additional Voices (voice)

Benedict Cumberbatch

Doctor Strange (voice)

Lake Bell

Natasha Romanoff / Black Widow (voice)

Chris Hemsworth

Thor (voice)

Ross Marquand

Ultron / Sub-Ultron Sentries (voice)

Seth Green

Howard the Duck (voice)

Mark Ruffalo

Bruce Banner / Hulk / Mega-Hulk (voice)

Secunda Wood

Additional Voices (voice)

Tom Hiddleston

Loki (voice)

Andrew Morgado

Additional Voices (voice)

Taika Waititi

Korg (voice)

Karen Gillan

Nebula (voice)

Chadwick Boseman

Star Lord T'Challa (voice)

June Christopher

Additional Voices (voice)

Jeremy Renner

Clint Barton / Hawkeye (voice)

Alexandra Daniels

Carol Danvers / Captain Marvel (voice)

Frank Grillo

Brock Rumlow (voice)

Kat Dennings

Darcy Lewis (voice)

Arthur Ortiz

Additional Voices (voice)

Jon Favreau

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

David W. Collins

Additional Voices (voice)

Devery Jacobs

Kahhori (voice)

Darin De Paul

The Executioner (voice)

Jason Isaacs

The Eminence (voice)

Josh Brolin

Thanos (voice)

Tom Vaughan-Lawlor

Ebony Maw (voice)

Matthew Yang King

Additional Voices (voice)

Danai Gurira

Okoye (voice)

Michael Rooker

Yondu Udonta (voice)

Rachel House

Topaz (voice)

Clancy Brown

Surtur (voice)

Kaitlyn Robrock

Additional Voices (voice)

Toby Jones

Arnim Zola (voice)

Kimberly Bailey

Additional Voices (voice)