Robert Downey Jr. returns as Tony Stark / Iron Man, Chris Evans as Steve Rogers / Captain America, and Mark Ruffalo as Bruce Banner / Hulk in Marvel’s 2015 sequel Avengers: Age of Ultron.
Main cast
- Tony Stark / Iron ManRobert Downey Jr.Main
- Steve Rogers / Captain AmericaChris EvansMain
- Bruce Banner / HulkMark RuffaloMain
- Natasha Romanoff / Black WidowScarlett JohanssonMain
- ThorChris HemsworthMain
- Clint Barton / HawkeyeJeremy RennerMain
- UltronJames SpaderMain
Supporting cast
- Wanda Maximoff / Scarlet WitchElizabeth OlsenSupp
- Pietro Maximoff / QuicksilverAaron Taylor-JohnsonSupp
- VisionPaul BettanySupp
- James Rhodes / War MachineDon CheadleSupp
- Nick FurySamuel L. JacksonSupp
- Maria HillCobie SmuldersSupp
- Pepper PottsGwyneth PaltrowSupp
- Erik SelvigStellan SkarsgårdSupp
Guest & voice
- Ulysses KlaueAndy SerkisGuest
- Helen ChoClaudia KimGuest
- F.R.I.D.A.Y.Kerry CondonVoice
- The Ancient OneTilda SwintonGuest
- Captain America (cameo in vision)Chris EvansGuest
- Doctor StrangeBenedict CumberbatchGuest
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About this cast
Avengers: Age of Ultron is the 2015 sequel to The Avengers, written and directed by Joss Whedon. The film sees Earth’s mightiest heroes reassemble to combat the rogue artificial intelligence Ultron, who plans to eradicate humanity. The core trio of Iron Man, Captain America, and Hulk are joined by new and returning allies.
FAQs
Who plays Tony Stark in Avengers: Age of Ultron?
Robert Downey Jr. plays Tony Stark / Iron Man.
Who plays Steve Rogers in Avengers: Age of Ultron?
Chris Evans plays Steve Rogers / Captain America.
Who plays Bruce Banner in Avengers: Age of Ultron?
Mark Ruffalo plays Bruce Banner / Hulk.
Who plays the villain Ultron?
James Spader provides the voice and motion capture for Ultron.
Is Avengers: Age of Ultron available to stream?
In the UK, Avengers: Age of Ultron is available to stream on Disney+ as part of the Marvel collection.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026