Robert Downey Jr.

Tony Stark / Iron Man

Chris Hemsworth

Thor

Mark Ruffalo

Bruce Banner / Hulk

Chris Evans

Steve Rogers / Captain America

Scarlett Johansson

Natasha Romanoff / Black Widow

Jeremy Renner

Clint Barton / Hawkeye

James Spader

Ultron (voice)

Samuel L. Jackson

Nick Fury

Don Cheadle

James Rhodes / War Machine

Aaron Taylor-Johnson

Pietro Maximoff / Quicksilver

Elizabeth Olsen

Wanda Maximoff / Scarlet Witch

Paul Bettany

Jarvis / Vision

Cobie Smulders

Maria Hill

Anthony Mackie

Sam Wilson / The Falcon

Hayley Atwell

Peggy Carter

Idris Elba

Heimdall

Linda Cardellini

Laura Barton

Stellan Skarsgård

Erik Selvig

Claudia Kim

Dr. Helen Cho

Thomas Kretschmann

Strucker

Andy Serkis

Ulysses Klaue

Julie Delpy

Madame B

Stan Lee

Stan Lee

Henry Goodman

Dr. List

Chris Luca

Fortress Soldier

Brian Schaeffer

Strucker Mercenary

Dominique Provost-Chalkley

Zrinka

Isaac Andrews

Costel

Gareth Kieran Jones

Sokovian Acid Student

Chan Woo Lim

Dr. Cho's Assistant

Minhee Yeo

Dr. Cho's Assistant

Bentley Kalu

Klaue's Mercenary

Julian Bleach

Ballet Instructor

Christopher Beasley

Johannesburg Cop

Vuyo Dabula

Johannesburg Cop

Nondumiso Tembe

Johannesburg Driver

Kabelo Thai

Johannesburg Onlooker

Lele Ledwaba

Johannesburg Onlooker

Mandla Gaduka

Johannesburg Onlooker

Harriet Lenabe

Johannesburg Onlooker

Beulah Hashe

Johannesburg Onlooker

Musca Kumalo

Johannesburg Onlooker

Mathapelo September

Johannesburg Onlooker

Antony Acheampong

Johannesburg Elevator Passenger

Chioma Anyanwu

Johannesburg Elevator Passenger

Ben Sakamoto

Cooper Barton

Imogen Poynton

Lila Barton

Isabella Poynton

Lila Barton

Ingvild Deila

World Hub Tech

Sunny Yeo

Korean Train Passenger

Namju Go

Korean Train Passenger

Mina Kweon

Korean Train Passenger

Earl T. Kim

Korean Train Passenger

Arthur Lee

Korean Train Passenger

Verity Hewlett

Sokovian Family

Michael Matovski

Sokovian Family

Alma Noce

Sokovian Family

Riccardo Richetta

Sokovian Family

Constanza Ruff

Sokovian Woman

Monty Mclaren-Clark

Tub Family Child

Julia Krynke

Sokovian Driver

Tony Christian

Sokovian SUV Driver

Ian Kay

Sokovian SUV Passenger

Barry Aird

Sokovian Police Captain

Aaron Himelstein

Specialist Cameron Klein

Kerry Condon

Friday (voice)

Jaiden Stafford

Nathaniel Pietro Barton

Josh Brolin

Thanos (uncredited)

Robert J. Fraser

Youth (uncredited)

Lou Ferrigno

Hulk (voice) (uncredited)

Zakk Pierce

Sokovian Boy (uncredited)

Freddie Andrews

Party Guest (uncredited)

Marian Lorencik

Sokovian (uncredited)

Daniel Westwood

Asgardian God (uncredited)

Jason Her

TV News Anchor (uncredited)