Scarlett Johansson Natasha Romanoff / Black Widow
Robert Downey Jr. Tony Stark / Iron Man
Linda Cardellini Laura Barton
Samuel L. Jackson Nick Fury
Josh Brolin Thanos (uncredited)
Chris Evans Steve Rogers / Captain America
Mark Ruffalo Bruce Banner / Hulk
Chris Hemsworth Thor
Hayley Atwell Peggy Carter
James Spader Ultron (voice)
Elizabeth Olsen Wanda Maximoff / Scarlet Witch
Hayao Miyazaki Thanks
Andy Serkis Ulysses Klaue
Paul Bettany Jarvis / Vision
Kerry Condon Friday (voice)
Don Cheadle James Rhodes / War Machine
Idris Elba Heimdall
Anthony Mackie Sam Wilson / The Falcon
Stan Lee Comic Book, Stan Lee, Executive Producer
Cobie Smulders Maria Hill
Jeremy Renner Clint Barton / Hawkeye
Thomas Kretschmann Strucker
Stellan Skarsgård Erik Selvig
Aaron Taylor-Johnson Pietro Maximoff / Quicksilver
Julie Delpy Madame B
Lou Ferrigno Hulk (voice) (uncredited)
Jon Favreau Executive Producer
Danny Elfman Original Music Composer
Jim Starlin Characters
Henry Goodman Dr. List
Joss Whedon Writer, Director
Louis D'Esposito Executive Producer
Kevin Feige Producer
Jack Kirby Comic Book, Characters
Bentley Kalu Klaue's Mercenary
Martin Ivanov Stunt Driver
Andy Park Conceptual Illustrator
Levan Doran Stunts
Arthur Lee Korean Train Passenger
Claudia Kim Dr. Helen Cho
Neil Fingleton Stunts
Isaac Andrews Costel
Joe Simon Characters
Heidi Moneymaker Stunt Double
Aaron Himelstein Specialist Cameron Klein
Mike Stallion Art Direction
Sarah Halley Finn Casting
Jeffrey Ford Associate Producer, Editor
Tim LeDoux Visual Effects Supervisor
Arslan Elver Lead Animator
Jon Baker Supervising Armorer
Zarene Dallas Stunt Double
David Masure-Bosco Visual Effects Coordinator
BJ McDonnell Steadicam Operator
Brian Tyler Original Music Composer
Arvo Pärt Additional Soundtrack
Evan Jacobs Stereoscopic Supervisor
Diego De Lajonquiere Other
Alan Fine Executive Producer
Renae Moneymaker Stunts
Erol Mehmet Stunts
Mitchell Bell Co-Producer
Lora Hirschberg Sound Re-Recording Mixer
Barry Aird Sokovian Police Captain
Paul Butterworth Visual Effects Supervisor
Patricia Whitcher Executive Producer
Paula Price Makeup & Hair
Ben Snow Visual Effects Supervisor
Bryan Andrews Storyboard Artist
Jeremy Woodhead Hair Designer, Makeup Designer
Julian Bleach Ballet Instructor
Jack Ridout Lighting Technician