Robert Downey Jr.

Tony Stark / Iron Man

Chris Evans

Steve Rogers / Captain America

Mark Ruffalo

Bruce Banner / The Hulk

Chris Hemsworth

Thor Odinson

Scarlett Johansson

Natasha Romanoff / Black Widow

Jeremy Renner

Clint Barton / Hawkeye

Tom Hiddleston

Loki

Samuel L. Jackson

Nick Fury

Cobie Smulders

Maria Hill

Clark Gregg

Phil Coulson

Stellan Skarsgård

Erik Selvig

Gwyneth Paltrow

Virginia "Pepper" Potts

Paul Bettany

J.A.R.V.I.S. (voice)

Alexis Denisof

The Other

Tina Benko

NASA Scientist

Jerzy Skolimowski

Georgi Luchkov

Kirill Nikiforov

Weaselly Thug

Jeff Wolfe

Tall Thug

M'laah Kaur Singh

Young Girl

Rashmi Rustagi

Calcutta Woman

Powers Boothe

World Security Council

Warren Kole

Carrier Bridge Techs

Maximiliano Hernández

Jasper Sitwell

Dieter Riesle

Gala Scientist

Kenneth Tigar

German Old Man

Walter Perez

Shield Pilot

Harry Dean Stanton

Security Guard

Josh Cowdery

Maintenance Guy

Ashley Johnson

Waitress

Katsumi Komatsu

Japanese Family

Robert Clohessy

Police Sergeant

Enver Gjokaj

Police Officer

Andrea Vecchio

News Reporter

Brent McGee

Faceless Pilot

Jamie McShane

Celebration Montage Interviewee

Romy Rosemont

Shawna Lynde

James Eckhouse

Senator Boynton

Stan Lee

Himself

Damion Poitier

Thanos (uncredited)

Lou Ferrigno

Hulk (voice - uncredited)

Jillian Morgese

Woman in Restaurant (uncredited)

Catherine Anderson

German Pedestrian (uncredited)

Ricardo Andres

Lentil Merchant (uncredited)

Logan Bennett

S.H.I.E.L.D. Agent (uncredited)

Mayank Bhatter

Celebration Montage Man Shaving Beard (uncredited)

Sharita Bone

Gala Guest (uncredited)

Jason Botsford

Museum Gala Patron (uncredited)

Gene N. Chavez

S.H.I.E.L.D. Guard (uncredited)

Robert Dean

Soldier (uncredited)

Rick Dremann

Museum Gala Guest (uncredited)

Rod Fielder

Pedestrian (uncredited)

Alexander Christopher Jones

Mercenary (uncredited)

Tiffany Sander McKenzie

Civilian (uncredited)

Chris Vaina

Running Pedestrian (uncredited)

Sandra Weston

Sweeper (uncredited)

Seth Zielicke

Barbershop (uncredited)

Alex DeCourville

Tourist (uncredited)

Andrea-Nichole Olivas

S.H.I.E.L.D agent (uncredited)

Tina Grimm

NYC Pedestrian (uncredited)

Evan Kole

Principal (uncredited)