Scarlett Johansson Natasha Romanoff / Black Widow
Robert Downey Jr. Tony Stark / Iron Man
Stellan Skarsgård Selvig
Samuel L. Jackson Nick Fury
Chris Evans Steve Rogers / Captain America
Mark Ruffalo Bruce Banner / The Hulk
Chris Hemsworth Thor
Tom Hiddleston Loki
Ashley Johnson Waitress
Cobie Smulders Agent Maria Hill
Gwyneth Paltrow Pepper Potts
Paul Bettany Jarvis (voice)
Jeremy Renner Clint Barton / Hawkeye
Jon Favreau Executive Producer
Jenny Agutter World Security Council
Seamus McGarvey Director of Photography
R.A. Rondell Stunt Coordinator
Clark Gregg Agent Phil Coulson
Warren Kole Carrier Bridge Tech
Jeff Wolfe Tall Thug
Harry Dean Stanton Security Guard
Ousaun Elam Stunt Double
Stan Lee Stan Lee, Executive Producer, Comic Book
Jesse García Carrier Bridge Techs
Rick Shuster Pilot
Stephen Broussard Thanks
Joss Whedon Screenplay, Story, Director
Matthew LeFevour Stunt Double
Damion Poitier Man #1
Becky Sullivan Supervising ADR Editor
Lou Ferrigno The Hulk (voice) (uncredited)
Rodney Fuentebella Conceptual Illustrator
Arthur Darbinyan World Security Council
Kris Krosskove Camera Operator
Frank Powers Shield Agent - Loki Escort (uncredited)
Josh Cowdery Maintenance Guy
Mitch Dubin Camera Operator
Avi Arad Executive Producer
Robert Clohessy Police Sergeant
Tina Benko NASA Scientist
Powers Boothe World Security Council
Nancy Bishop Casting
Andy Dylan Stunt Double
Kevin Feige Producer
Martin Palmer Shiel Employee (uncredited)
Jamie McShane Celebration Montage Interviewee
Sam Page Set Designer
Donna Evans Stunts, Utility Stunts
Tony Rivetti Sr. First Assistant "A" Camera
Alex Chansky Stunt Double
Linda Perlin Stunts
Riley Harper Stunts
Romy Rosemont Shawna Lynde
Louis D'Esposito Executive Producer
Matt McDonald Visual Effects Supervisor
Pat Kiernan Pat Kiernan
Jason Botsford Museum Gala Patron (uncredited)
Iain McCaig Concept Artist
James R. Tynes Gaffer
Nathaniel Caauwe Rotoscoping Artist
James Eckhouse Senator Boynton
Mike Gunther Utility Stunts
Jimi Johnson Video Assist Operator
Donald Li World Security Council
Alexis Denisof The Other
Yvette Meely Hairstylist
Mollie Kimball Whitson Costume Assistant
Enver Gjokaj Young Cop
Jeff Seich New York Police Officer in Firefight (uncredited)
Matt Greig Compositing Supervisor
Jack Kirby Characters, Comic Book
C.J. Roy Digital Imaging Technician