Avengers: Infinity War Cast (2018)
Marvel Studios | Superhero / Action | 149 min | Directed by Anthony & Joe Russo
Avengers: Infinity War (2018) is the nineteenth film in the Marvel Cinematic Universe and the first installment of a two-part story that brings together virtually every major MCU hero. The film's central antagonist is Thanos, played by Josh Brolin, who seeks to collect all six Infinity Stones and use them to wipe out half of all life in the universe. Heroes from across the MCU — the Avengers, the Guardians of the Galaxy, the Wakandan forces, and more — converge in desperate attempts to stop him. The film's shocking ending, in which Thanos succeeds, set the stage for Avengers: Endgame the following year.
The Avengers: Infinity War cast is arguably the most expansive in superhero film history, bringing together characters from over a decade of interconnected Marvel Cinematic Universe storytelling. At the film's narrative core is Josh Brolin's performance as Thanos, who receives more screen time and character development than any villain in the MCU to that point. Robert Downey Jr.'s Tony Stark and Benedict Cumberbatch's Doctor Strange share scenes that showcase the film's sharp dialogue, while the collision between the Avengers and the Guardians of the Galaxy — with Chris Pratt's Star-Lord clashing against Chris Hemsworth's Thor — provides some of the film's most entertaining moments. Zoe Saldaña delivers a career-best MCU performance as Gamora, whose personal history with Thanos forms the film's emotional backbone. The Russo brothers organized the enormous cast into separate storylines that converge for the film's devastating finale in Wakanda.
Main Cast
Robert Downey Jr.
Tony Stark / Iron Man
The MCU's founding hero, who faces Thanos directly in New York and later on Titan, ultimately being stabbed and left for dead on the alien world.
Josh Brolin
Thanos
The film's protagonist-antagonist, a complex villain who believes halving the universe's population is an act of mercy; successfully collects all six Stones and executes the Decimation.
Chris Hemsworth
Thor
Having lost Asgard and his brother, Thor travels to Nidavellir to forge Stormbreaker and delivers the mightiest blow against Thanos in the film's climax — though not quite enough.
Benedict Cumberbatch
Doctor Strange
Sorcerer Supreme who views fourteen million possible futures and deliberately surrenders the Time Stone to save Tony's life, knowing it is the only path to victory.
Chris Evans
Steve Rogers / Captain America
Operating as a fugitive after Civil War, Steve leads a small team to Wakanda to protect Vision and the Mind Stone from Thanos's forces.
Zoe Saldaña
Gamora
Thanos's adopted daughter, whose personal connection to the villain and sacrifice on Vormir anchors the film's most emotionally resonant storyline.
Scarlett Johansson
Natasha Romanoff / Black Widow
Fights alongside Steve's team in Wakanda, going up against Thanos's Black Order in the film's large-scale battle sequences.
Mark Ruffalo
Bruce Banner / Hulk
Warns the other Avengers after being transported to Earth by Heimdall; Hulk refuses to emerge for most of the film, leaving Bruce to fight in Tony's Hulkbuster armor.
Tom Holland
Peter Parker / Spider-Man
Joins the battle in New York and travels to Titan, earning his new Iron Spider armor; one of the first heroes to dissolve into dust at the film's end.
Chadwick Boseman
T'Challa / Black Panther
Opens Wakanda's borders to the Avengers and leads the Wakandan army against Thanos's Outriders in the film's epic ground battle.
Chris Pratt
Peter Quill / Star-Lord
Leader of the Guardians, whose volatile emotional reaction to Gamora's death on Titan inadvertently prevents the heroes from removing the Gauntlet from Thanos.
Tom Hiddleston
Loki
Appears at the film's opening, surrendering the Tesseract to Thanos before being killed — establishing from the outset that Infinity War will not follow conventional MCU storytelling rules.
Supporting & Recurring Cast
| Actor | Character | Role | Notes |
|---|---|---|---|
| Elizabeth Olsen | Wanda Maximoff / Scarlet Witch | Fights in both Scotland and Wakanda; tasked with destroying the Mind Stone, killing Vision and Thanos simultaneously — only for Thanos to reverse time | Key role |
| Paul Bettany | Vision | The android who carries the Mind Stone in his forehead; his survival is the central crisis that leads the team to Wakanda, where he is ultimately killed by Thanos | Major role |
| Dave Bautista | Drax the Destroyer | Travels with the Guardians to Knowhere and then Titan; his hatred of Thanos for killing his family drives several scenes | Supporting role |
| Karen Gillan | Nebula | Captured by Thanos and tortured to manipulate Gamora into revealing the Soul Stone's location | Key role |
| Sebastian Stan | Bucky Barnes / White Wolf | Living in Wakanda under T'Challa's protection; fights in the Wakandan battle with a vibranium arm provided by Shuri | Supporting role |
| Don Cheadle | James Rhodes / War Machine | Fights in Wakanda as part of the assembled Avengers; survives the Decimation | Supporting role |
| Benedict Wong | Wong | Master of the Mystic Arts who helps defend the Sanctum Sanctorum alongside Strange before departing to protect it further | Supporting role |
| Pom Klementieff | Mantis | Travels to Titan with the Guardians; uses her empathic powers to hold Thanos in a trance, nearly allowing the heroes to remove the Gauntlet | Supporting role |
| Danai Gurira | Okoye | Wakandan general who fights alongside Black Panther in the defense of the country | Supporting role |
| Winston Duke | M'Baku | Leader of the Jabari tribe who brings his warriors to fight in Wakanda's defense | Supporting role |
| Idris Elba | Heimdall | Uses his last strength to send Hulk to Earth to warn the Avengers before being killed by Thanos | Brief but pivotal role |
| Peter Dinklage | Eitri | The dwarf king of Nidavellir who forged the Infinity Gauntlet for Thanos and helps Thor create Stormbreaker | Notable supporting role |
Creators & Production
Anthony Russo & Joe Russo
Directors — brought their grounded, action-focused sensibility to the MCU's most ambitious film to date.
Christopher Markus & Stephen McFeely
Screenwriters — made the daring creative choice to structure Thanos as the film's protagonist, giving the villain an unusually sympathetic lens.
Kevin Feige
Producer — oversaw the decade-long narrative architecture that made Infinity War's ensemble possible.
Alan Silvestri
Composer — delivered a score that integrated Avengers, Guardians, and new Thanos themes into a coherent whole.
Trent Opaloch
Cinematographer — maintained visual continuity across the film's many geographically disparate storylines.
Jeffrey Ford & Matthew Schmidt
Editors — handled the challenge of balancing multiple simultaneous storylines across a 149-minute runtime.
About the Avengers: Infinity War Cast
Infinity War required Marvel Studios to negotiate dozens of separate actor deals simultaneously while keeping the film's plot secret from virtually everyone involved in production. Many actors were given false scripts or received only their own scenes, with the full story revealed only at table reads weeks before filming began. The production — which ran simultaneously with Avengers: Endgame — was shot primarily on massive studio stages in Atlanta, Georgia, supplemented by location work in Edinburgh, Scotland for early scenes and visual effects environments built for Wakanda and Titan. Chris Hemsworth's Thor, who had received a creative revitalization in Thor: Ragnarok, served as an unexpectedly central character whose emotional arc across Infinity War and Endgame became one of the franchise's most discussed storylines.
Josh Brolin's Thanos required an unprecedented level of facial performance capture and digital replacement, with Industrial Light & Magic spending years developing the technology to make his expressions fully believable. Brolin performed all of Thanos's scenes with the other actors on set in a performance suit, ensuring that the cast had a physical presence to react to rather than acting against empty air. The decision to give Thanos a coherent philosophy — rather than simply making him a generic conqueror — was a deliberate choice by Markus and McFeely, who credited the 2013 Jim Starlin comic "Thanos: The Infinity Gauntlet" alongside their own original conception. The film's ending, in which Thanos wins outright, remained a tightly guarded secret until release and shocked audiences worldwide.
Frequently Asked Questions
Who stars in Avengers: Infinity War?
Avengers: Infinity War stars Robert Downey Jr., Chris Hemsworth, Chris Evans, Scarlett Johansson, Josh Brolin as Thanos, Benedict Cumberbatch, Tom Holland, Chadwick Boseman, and Zoe Saldaña among many others from across the Marvel Cinematic Universe.
Who plays Thanos in Avengers: Infinity War?
Josh Brolin portrays Thanos via motion capture and voice performance. Infinity War marks the Mad Titan's first appearance as the primary antagonist in a full feature film, following brief cameos in earlier MCU entries.
When was Avengers: Infinity War released?
Avengers: Infinity War was released on April 27, 2018. The film earned over $2.04 billion at the worldwide box office and became one of the fastest films to reach the billion-dollar mark.
Who directed Avengers: Infinity War?
Anthony Russo and Joe Russo directed Avengers: Infinity War, having previously helmed Captain America: The Winter Soldier (2014) and Captain America: Civil War (2016) for Marvel Studios.
Is Avengers: Infinity War connected to Avengers: Endgame?
Yes. Infinity War and Endgame were conceived and filmed as a two-part story. Infinity War ends with Thanos successfully using the Infinity Gauntlet to erase half of all life, and Endgame follows the surviving heroes' attempt to undo that event five years later.
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