- Robert Downey Jr.
- Tony Stark/Iron Man
- Chris Hemsworth
- Thor
- Mark Ruffalo
- Bruce Banner/The Hulk
- Chris Evans
- Steve Rogers/Captain America
- Scarlett Johansson
- Natasha Romanoff/The Black Widow
- Jeremy Renner
- Clint Barton/Hawkeye
- Don Cheadle
- Lt. Col. James Rhodes
- Aaron Taylor-Johnson
- Pietro Maximoff/Quicksilver
- Elizabeth Olsen
- Wanda Maximoff/Scarlet Witch
- Paul Bettany
- Jarvis/The Vision
- Cobie Smulders
- Agent Maria Hill
- Anthony Mackie
- Sam Wilson/Falcon
- Hayley Atwell
- Peggy Carter
- Idris Elba
- Heimdall
- Stellan Skarsgård
- Erik Selvig
- James Spader
- Ultron
- Samuel L. Jackson
- Nick Fury
- Thomas Kretschmann
- Strucker
- Joss Whedon
- Director, Screenwriter
- Jon Favreau
- Executive Producer
- Stan Lee
- Executive Producer
- Victoria Alonso
- Executive Producer
- Jeremy Latcham
- Executive Producer
- Patricia Whitcher
- Executive Producer
- Alan Fine
- Executive Producer
- Louis D'Esposito
- Executive Producer
- Kevin Feige
- Producer
- Ben Davis
- Cinematographer
- Jeffrey Ford
- Film Editing
- Lisa Lassek
- Film Editing
- Brian Tyler
- Original Music
- Danny Elfman
- Original Music
- Charles Wood
- Production Design
- Alexandra Byrne
- Costume Design
