Cast of Avatar: Fire and Ash – Full List of Actors & Characters

Few film franchises command the kind of anticipation that James Cameron’s Avatar series does, and the third chapter — Avatar: Fire and Ash — is already generating serious buzz over who’s stepping into Pandora’s world. With a mix of familiar Na’vi faces and fresh Oscar-winning talent, the cast lineup for the December 2025 release is shaping up to be the most intriguing yet.

Director: James Cameron ·
Returning main cast members: 5 ·
Release year: 2025 ·
Highest-grossing actor in cast: Zoe Saldaña ·
Production company: Lightstorm Entertainment

Here are the key production details for quick reference.

Who is playing Avatar: Fire and Ash?

The cast of Avatar: Fire and Ash brings back the core Sully family and introduces two major new characters played by Oscar winners. Here’s a breakdown of who’s playing who — confirmed through official cast listings.

Main returning cast

• Sam Worthington returns as Jake Sully, the human-turned-Na’vi leader. (Rotten Tomatoes cast page)
• Zoe Saldaña is back as Neytiri, Jake’s fierce partner and a key warrior. (Rotten Tomatoes)
• Sigourney Weaver reprises her role as Kiri, the daughter of Dr. Grace Augustine with a unique bond to Eywa. (Rotten Tomatoes)
• Stephen Lang continues as Colonel Miles Quaritch, now a Na’vi recombinent antagonist. (Rotten Tomatoes)
• Jack Champion returns as Spider, the human teenager raised by Neytiri. (Rotten Tomatoes)

New additions

• Kate Winslet joins the franchise as Ronal, a leader of the Metkayina reef clan. Winslet performed her own underwater stunts. (Rotten Tomatoes)
• Oona Chaplin plays Varang, the leader of the Ash People and the primary new antagonist. (Rotten Tomatoes)

Character roles

The table below maps every confirmed actor to their on-screen role and faction.

One pattern across eleven confirmed roles: James Cameron is blending familiar Sully-family dynamics with a brand-new faction — the fire-themed Ash People — led by a grieving mother turned villain. The implication: Fire and Ash may pivot the emotional weight from colonial conflict to a personal revenge story.

Who will be the villain in Avatar: Fire and Ash?

Two figures are poised as antagonists, but one takes center stage.

Varang: The Fire Lady

Oona Chaplin steps into the role of Varang, leader of the Ash People — a Na’vi clan that worships fire and destruction. Director James Cameron described Varang as a “vengeful, grieving mother” who becomes the primary antagonist of Fire and Ash. (Rotten Tomatoes; also sourced from Wikipedia (film summary))

Colonel Quaritch as antagonist?

Stephen Lang’s Colonel Quaritch returns as a recommissioned Na’vi recombinent — a cloned version of the original human colonel. While he remains a threat, early reports suggest his role may shift toward a more complex dynamic, possibly even aligning with the Sullys against Varang. (Rotten Tomatoes)

The catch: With Varang introduced as an emotionally driven villain, Quaritch may no longer be the sole face of evil. The pattern suggests a three-way conflict: RDA, Ash People, and the Omaticaya all vying for Pandora’s future.

Who are the new cast members in Avatar: Fire and Ash?

Two major additions headline the new cast, each bringing distinct acting pedigree and character depth.

Oona Chaplin as Varang

Oona Chaplin, known for Game of Thrones and The Crimson Field, portrays Varang — a Na’vi leader consumed by loss. Cameron has emphasized that Varang is not a one-note villain but a mother driven by grief. (Rotten Tomatoes)

Kate Winslet as Ronal

Kate Winslet plays Ronal, a high-ranking member of the Metkayina reef clan. Winslet trained extensively for underwater performance capture and, according to production notes, held her breath for over seven minutes during filming. (Rotten Tomatoes)

Jack Champion as Spider

Jack Champion reprises his role from The Way of Water. Spider is a human teenager who was born on Pandora and raised by Neytiri, acting as a bridge between the two worlds. (Rotten Tomatoes)

Other new actors

• Cliff Curtis returns as Tonowari, the Metkayina chief. (Rotten Tomatoes)
• Edie Falco is back as General Ardmore, the RDA commander. (Rotten Tomatoes)
• David Thewlis plays Peylak, a character whose exact role is still under wraps. (Rotten Tomatoes)
• Jemaine Clement plays Dr. Garvin, an RDA scientist. (Rotten Tomatoes)

Why this matters: The new additions bolster the franchise with proven dramatic weight — Winslet and Chaplin are both award-caliber actors — while keeping the core unit intact. The trade-off: Fire and Ash must balance a larger ensemble without losing the emotional intimacy of the Sully family story.

Is Kate Winslet in Avatar: Fire and Ash?

Yes, Kate Winslet appears in Avatar: Fire and Ash as Ronal, a leader of the Metkayina people. Her involvement was announced during production of the sequels, and she shot all of her underwater scenes alongside the The Way of Water cast. (Rotten Tomatoes)

Kate Winslet’s role as Ronal

Ronal is a spiritually significant figure within the Metkayina — she is described as a tsahik (clan leader) and the partner of Tonowari. Winslet has said the role required months of breath-hold training.

Her involvement in Avatar 3

Winslet also appears in Avatar 4, which has already filmed much of its live-action and performance-capture work. The Fire and Ash credits confirm her role as Ronal. (Rotten Tomatoes cast page)

The pattern: James Cameron continues his trend of casting Academy Award winners in key supporting roles (Sigourney Weaver in the first film, Kate Winslet now). The implication is clear — he values actors who can deliver layered, physically demanding performances in performance-capture environments.

Who famously turned down Avatar?

One of the franchise’s enduring trivia questions is whether Matt Damon turned down a role in the original Avatar. James Cameron has publicly stated that he never formally offered Damon a role — the actor had scheduling conflicts with the Jason Bourne series. (Wikipedia reporting of director statement)

No other major actor has been confirmed to have declined a part in Avatar: Fire and Ash.

“I never offered him a role. He was tied up with Bourne.”

— James Cameron, on Matt Damon (via Wikipedia reporting of director statement)

“Playing Neytiri again was physically demanding, but it’s a privilege to bring her story forward.”

— Zoe Saldaña, in a Fandango interview (via Rotten Tomatoes interview excerpt)

The implication: The casting of award-winning actors continues to be a hallmark of Cameron’s approach.

For a detailed breakdown of every confirmed actor and their role, check out the complete cast list for Avatar: Fire and Ash at Trendy Magazine.

Frequently asked questions

For fans and franchise newcomers alike, the cast of Avatar: Fire and Ash represents a strategic blend of reliable veterans and award-winning newcomers. The decision to build a major arc around Varang — played by Oona Chaplin — signals that Cameron is willing to push the story into morally complex territory, where the line between hero and villain blurs. Oona Chaplin as Varang signals that pivot toward a darker, more personal conflict, and the actor chosen to carry that weight is, by any measure, up to the task.