Scarlett Johansson Natasha Romanoff / Black Widow
Robert Downey Jr. Tony Stark / Iron Man
Samuel L. Jackson Nick Fury
Chris Hemsworth Thor
Mark Ruffalo Bruce Banner / The Hulk
Chris Evans Steve Rogers / Captain America
Cobie Smulders Agent Maria Hill
Jon Favreau Executive Producer
Kevin Feige Producer
Tom Hiddleston Loki
Paul Bettany Jarvis (voice)
Ashley Johnson Waitress
Jeremy Renner Clint Barton / Hawkeye
Stan Lee Stan Lee, Executive Producer, Comic Book
Jenny Agutter World Security Council
Gwyneth Paltrow Pepper Potts
Stellan Skarsgård Selvig
Clark Gregg Agent Phil Coulson
Jamie McShane Celebration Montage Interviewee
Jack Kirby Characters, Comic Book
Powers Boothe World Security Council
Joss Whedon Screenplay, Story, Director
Lou Ferrigno The Hulk (voice) (uncredited)
Harry Dean Stanton Security Guard
Jesse Garcia Carrier Bridge Techs
Joe Simon Characters
Robert Clohessy Police Sergeant
Avi Arad Executive Producer
Maximiliano Hernández Agent Jasper Sitwell
Victoria Alonso Executive Producer
Warren Kole Carrier Bridge Tech
Heba Thorisdottir Makeup Artist
Enver Gjokaj Young Cop
Kenneth Tigar German Old Man
Clay Cullen Stunt Double
Louis D'Esposito Executive Producer
Daniel Sudick Special Effects Supervisor
Tim Connolly Utility Stunts
Christopher Boyes Sound Re-Recording Mixer, Sound Designer
Zak Penn Story
Romy Rosemont Shawna Lynde
Donna Evans Utility Stunts, Stunts
Sam Hargrave Stunt Double
Hank Amos Shield Agent (uncredited), Stunt Coordinator
James Eckhouse Senator Boynton
Anthony Molinari Stunt Double
Alan Silvestri Original Music Composer
Alexis Denisof The Other
Heidi Moneymaker Stunt Double
Annie Ellis Stunts
Tina Benko NASA Scientist
Jeff Wolfe Tall Thug
Pat Kiernan Pat Kiernan
Sarah Halley Finn Casting
Don Burgess Additional Photography
Damion Poitier Man #1
Steve Boeddeker Sound Effects Editor
Greg Strause Visual Effects Supervisor
Jeffrey Ford Editor
Lora Hirschberg Sound Re-Recording Mixer
Dave Jordan Music Supervisor
Jon Valera Utility Stunts
Mayank Bhatter Celebration Montage Man Shaving Beard (uncredited)
Linda Perlin Stunts
Jerzy Skolimowski Georgi Luchkov
Donald Li World Security Council
Jeff Sutherland Digital Compositor
Matt Leonard Utility Stunts
Mitch Dubin Camera Operator
Alexandra Byrne Costume Design
Walter Perez Young Shield Pilot
Frank E. Eulner Supervising Sound Editor