Joss Whedon	...	(Director)
Joss Whedon, Stan Lee, Jack Kirby	...	(Writer)
Robert Downey Jr.	...	Tony Stark / Iron Man
Chris Hemsworth	...	Thor
Mark Ruffalo	...	Bruce Banner / Hulk
Chris Evans	...	Steve Rogers / Captain America
Scarlett Johansson	...	Natasha Romanoff / Black Widow
Jeremy Renner	...	Clint Barton / Hawkeye
James Spader	...	Ultron
Samuel L. Jackson	...	Nick Fury
Don Cheadle	...	James Rhodes / War Machine
Aaron Taylor-Johnson	...	Pietro Maximoff / Quicksilver
Elizabeth Olsen	...	Wanda Maximoff / Scarlet Witch
Paul Bettany	...	Jarvis / Vision
Cobie Smulders	...	Maria Hill
Anthony Mackie	...	Sam Wilson / Falcon
Hayley Atwell	...	Peggy Carter
Danny Elfman	...	Composer
Brian Tyler	...	Composer
Ben Davis	...	Cinematographer
Jeffrey Ford	...	Editor
Lisa Lassek	...	Editor

Summary: When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth's Mightiest Heroes, including Iron Man, Captain America, Thor, the Incredible Hulk, Black Widow and Hawkeye, are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to the Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for a global adventure.