Robert Downey Jr.

Character: Tony Stark / Iron Man

Chris Hemsworth

Character: Thor

Mark Ruffalo

Character: Bruce Banner / Hulk

Chris Evans

Character: Steve Rogers / Captain America

Scarlett Johansson

Character: Natasha Romanoff / Black Widow

Jeremy Renner

Character: Clint Barton / Hawkeye

James Spader

Character: Ultron (voice)

Samuel L. Jackson

Character: Nick Fury

Don Cheadle

Character: James Rhodes / War Machine

Aaron Taylor-Johnson

Character: Pietro Maximoff / Quicksilver

Elizabeth Olsen

Character: Wanda Maximoff / Scarlet Witch

Paul Bettany

Character: Jarvis / Vision

Cobie Smulders

Character: Maria Hill

Anthony Mackie

Character: Sam Wilson / The Falcon

Hayley Atwell

Character: Peggy Carter

Idris Elba

Character: Heimdall

Linda Cardellini

Character: Laura Barton

Stellan Skarsgård

Character: Erik Selvig

Claudia Kim

Character: Dr. Helen Cho

Thomas Kretschmann

Character: Strucker

Andy Serkis

Character: Ulysses Klaue

Julie Delpy

Character: Madame B

Stan Lee

Character: Stan Lee

Henry Goodman

Character: Dr. List

Chris Luca

Character: Fortress Soldier

Brian Schaeffer

Character: Strucker Mercenary

Dominique Provost-Chalkley

Character: Zrinka

Isaac Andrews

Character: Costel

Gareth Kieran Jones

Character: Sokovian Acid Student

Chan Woo Lim

Character: Dr. Cho's Assistant

Minhee Yeo

Character: Dr. Cho's Assistant

Bentley Kalu

Character: Klaue's Mercenary

Julian Bleach

Character: Ballet Instructor

Christopher Beasley

Character: Johannesburg Cop

Vuyo Dabula

Character: Johannesburg Cop

Nondumiso Tembe

Character: Johannesburg Driver

Kabelo Thai

Character: Johannesburg Onlooker

Lele Ledwaba

Character: Johannesburg Onlooker

Mandla Gaduka

Character: Johannesburg Onlooker

Harriet Lenabe

Character: Johannesburg Onlooker

Beulah Hashe

Character: Johannesburg Onlooker

Musca Kumalo

Character: Johannesburg Onlooker

Mathapelo September

Character: Johannesburg Onlooker

Antony Acheampong

Character: Johannesburg Elevator Passenger

Chioma Anyanwu

Character: Johannesburg Elevator Passenger

Ben Sakamoto

Character: Cooper Barton

Imogen Poynton

Character: Lila Barton

Isabella Poynton

Character: Lila Barton

Ingvild Deila

Character: World Hub Tech

Sunny Yeo

Character: Korean Train Passenger

Namju Go

Character: Korean Train Passenger

Mina Kweon

Character: Korean Train Passenger

Earl T. Kim

Character: Korean Train Passenger

Arthur Lee

Character: Korean Train Passenger

Verity Hewlett

Character: Sokovian Family

Michael Matovski

Character: Sokovian Family

Alma Noce

Character: Sokovian Family

Riccardo Richetta

Character: Sokovian Family

Constanza Ruff

Character: Sokovian Woman

Monty Mclaren-Clark

Character: Tub Family Child

Julia Krynke

Character: Sokovian Driver

Tony Christian

Character: Sokovian SUV Driver

Ian Kay

Character: Sokovian SUV Passenger

Barry Aird

Character: Sokovian Police Captain

Aaron Himelstein

Character: Specialist Cameron Klein

Kerry Condon

Character: Friday (voice)

Jaiden Stafford

Character: Nathaniel Pietro Barton

Josh Brolin

Character: Thanos (uncredited)

Robert J. Fraser

Character: Youth (uncredited)

Lou Ferrigno

Character: Hulk (voice) (uncredited)

Zakk Pierce

Character: Sokovian Boy (uncredited)