Robert Downey Jr.
Tony Stark / Iron Man
When Tony Stark and Bruce Banner try to jump-start a dormant peacekeeping program called Ultron, things go horribly wrong and it's up to Earth's mightiest heroes to stop the villainous Ultron from enacting his terrible plan.
Tony Stark / Iron Man
Thor
Bruce Banner / Hulk
Steve Rogers / Captain America
Natasha Romanoff / Black Widow
Clint Barton / Hawkeye
Ultron (voice)
Nick Fury
James Rhodes / War Machine
Pietro Maximoff / Quicksilver
Wanda Maximoff / Scarlet Witch
Jarvis / Vision
Maria Hill
Sam Wilson / The Falcon
Peggy Carter
Heimdall
Laura Barton
Erik Selvig
Dr. Helen Cho
Strucker
Director
