Jack Champion’s Spider undergoes a revolutionary transformation in Avatar: Fire and Ash, gaining the ability to breathe Pandora’s air and connect with Eywa—a development that surprised even the actor when revealed in trailers and fundamentally reshapes his character’s role in the expanding franchise.
From Human Outcast to Pandoran Native
Jack Champion’s journey as Spider began in 2017 when filming started for both Avatar: The Way of Water and Avatar: Fire and Ash, with the actor officially wrapping principal photography in 2020 but returning annually for additional shoots. Now 21, Champion reflects on the unique experience of having the world see his performance as a teenager while he’s matured significantly as an actor.
“I’ve given this metaphor before,” Champion told Entertainment Weekly. “Let’s say I started playing guitar really seriously in 2017. The whole world is seeing me at 14, 15, playing the guitar. But I’m 21 now. I’m so proud of everything I did, but there is an aspect of, ‘Wow, the whole world is seeing me act at that age.'”
The Surprising Trailer Revelation
The most significant development for Spider in the third Avatar installment is his biological transformation. The human character gains the ability to breathe Pandora’s typically toxic air and grows a queue—the Na’vi appendage that allows connection with Eywa and the planet’s ecosystem. This evolution was surprisingly revealed in the film’s trailers, a decision that caught Champion off guard.
“I definitely was surprised,” Champion admitted. “James Cameron is a cinematic genius, and he has so many plans. I feel like there’s so much shocking story-twisting stuff in Fire and Ash that was maybe one he was willing to reveal.”
The actor noted that the revelation actually made his press tour responsibilities easier: “If anything, it made my job easier ’cause I could just talk about it versus having to give a really roundabout answer.”
Spider’s Expanded Role in the Franchise
Champion knew from early discussions with Cameron and the late producer Jon Landau that Spider would play a crucial role in the third film. The character serves as the biological son of Stephen Lang’s Quaritch while being an adopted member of the Sully family, creating a complex dynamic that drives much of the narrative.
“Jim would use references like ‘Spider’s the heart of the story,'” Champion recalled. “Movies 2 and 3 were to most of us just one big story, but Spider is obviously an important part of 2, but nowhere near as much as 3 because of the whole air-breather of it all and just the amount that he’s in it.”
This expanded role nearly didn’t happen—Cameron previously revealed he considered cutting Spider from the sequels entirely during development.
Developing Romance with Kiri
Another significant evolution in Fire and Ash is Spider’s relationship with Sigourney Weaver’s character Kiri, which develops clear romantic undertones. Champion praised Weaver’s ability to embody a teenage character despite their age difference, noting that their chemistry was established from their very first meeting.
“Since Sigourney is Sigourney, she’s so good at acting,” Champion explained. “We’re literally in a performance-capture Volume where it’s gray. We know that our imagination is our main weapon. So when she’s acting, it was so easy ’cause she’s such a good actress. I just reacted off her.”
The actor revealed that during his initial screen test, after completing scripted scenes, he and Weaver spent 30 minutes improvising together. “We really just used our imagination, and it was fun. Really, since the very beginning, Sigourney and I have been so locked in imaginatively that I’ve always been able to see Sigourney, then see Kiri.”
Marvel Connections and Future Projects
Champion also discussed his brief appearance in Avengers: Endgame as “Kid on Bike,” where he shared the Marvel universe with Avatar co-star Zoe Saldaña, who plays Gamora. The actor recalled Saldaña giving him a shoutout at the film’s cast and crew screening but recently forgetting his Marvel connection during a promotional game.
“She forgot that I was in Endgame,” Champion laughed. “It was like, ‘Which franchise has Jack not been a part of?’ And she was like, ‘I don’t think he’s been part of Marvel.’ Then she immediately remembered, and she was like, ‘I’m so sorry!'”
The role came through a simple self-tape audition, and Champion remains surprised that fans still recognize him from the appearance. “The amount of people that do still remember once I tell them is surprising,” he said.
The Future of Spider in the Avatar Saga
With Spider’s transformation complete and his relationships deepening, the character stands at a crossroads that could define the direction of the remaining Avatar films. Champion’s expanded role signals Cameron’s commitment to exploring the human-Na’vi hybrid experience more deeply, potentially setting up Spider as a bridge between species in the conflict ahead.
The actor’s journey mirrors his character’s—starting as the lone live-action performer among motion-capture artists and growing into a central figure in one of cinema’s most ambitious franchises. As Champion noted, “This is a big decision, not just for my character but for the whole movie.”
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