Though the marketing for the film hasn't put him front and center (yet), we've known since at least 2022 that Tim Blake Nelson will reprise his role as Samuel Sterns/The Leader in Captain America: Brave New World. The actor originated the role back in 2008's The Incredible Hulk, and fans have been eagerly waiting to see him return to the Marvel Cinematic Universe (MCU).
It's exciting to see Marvel finally tying up this loose thread, though it's a bit surprising that The Leader is set to face off against Captain America rather than headlining a new Hulk movie. However, this twist makes sense strategically. The Leader represents the kind of enemy Sam Wilson, the new Captain America, would least expect, making him a formidable foe. Let's delve into The Leader's background and why he could be the perfect villain for the next Captain America film.
The Leader: Who Is Tim Blake Nelson's Character? ------------------------------------------------The Leader is widely recognized as Hulk's primary archnemesis. Unlike most of Hulk's adversaries who focus on brute strength, Samuel Sterns takes a different approach. His exposure to gamma radiation dramatically increased his intelligence, making him as intellectually formidable as Hulk is physically powerful. This places him among the most dangerous villains in the Marvel Universe.
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In The Incredible Hulk (2008), Tim Blake Nelson played a pre-transformation Samuel Sterns, a cellular biologist who becomes an ally to Bruce Banner. Sterns helps Banner seek a cure for his Hulk transformation, but he has a different vision. He believes Banner's blood can unlock humanity's potential and eliminate diseases. However, pressured by General Ross, Sterns also aids in transforming Emil Blonsky into the Abomination.
The film concludes with Sterns in a state of transformation after his forehead is exposed to Banner's irradiated blood, hinting at his future as The Leader.

Expect Nelson's character to look a bit different when he returns in Captain America: Brave New World. The Return of the Leader in the Marvel Cinematic Universe
The Incredible Hulk set the stage for a sequel featuring The Leader, but Marvel Studios has avoided producing another standalone Hulk film due to Universal Pictures owning part of the rights. Instead, Hulk's story has continued through the Avengers films and Thor: Ragnarok, explaining why The Leader's return has been delayed.
Bruce Banner, played by Mark Ruffalo, also appeared in She-Hulk: Attorney at Law, where he left Earth in Episode 3 to handle unfinished business on Sakaar. He returned in the season finale with a son, Skaar. Rumors suggested The Leader might appear in She-Hulk before becoming the main villain in Captain America: Brave New World. Although he didn't show up in She-Hulk, trailers for Brave New World indicate he might be orchestrating other villains behind the scenes.
Why the Leader Is One of the Villains in Captain America 4
The choice to feature The Leader in a Captain America sequel might seem odd, given his lack of direct conflict with Bruce Banner. If anything, he might resent General Ross and Emil Blonsky more for his transformation. This could be key to his role in Brave New World, where he might seek revenge against now-President Ross, played by Harrison Ford, to tarnish his reputation and destabilize America's image globally. This also puts him in direct opposition to the new Captain America, Sam Wilson.
Director Julius Onah emphasized The Leader's unexpected nature as a threat to Sam Wilson, saying, "Actions have consequences, and that's what's so great about what the MCU has been able to build. In this universe, in this world, things that people do come back in ways that are surprising and unexpected, and Tim Blake Nelson coming back as The Leader is such an exciting thing to explore because his story now is going to challenge Sam Wilson, our new Captain America, in a way that he never expected. So it's really, really thrilling. And I think a lot of things that got set up and established years ago will allow the MCU to actually go in new directions that audiences are going to really, really be excited about."
Onah also highlighted that this conflict will be the first significant test of Sam's leadership, requiring him to rally the Avengers against a unique threat. He stated, "We saw what it means for somebody like him to take the shield. But it is also a very different MCU. It's a post-blip MCU. It's a post-Thanos MCU. So the world has changed a lot too. And the role of a hero has changed. What does that mean? The decisions he's going to have to make, and the situations he's going to be confronted with, are radically different from what Steve Rogers had to deal with. And as a result of that, because he's a leader now of this team, he's got to make decisions that are going to have massive implications. So the world has changed around him and he's a changed man, and I think that leads to some really exciting storytelling."
Sam Wilson has faced some of the MCU's most powerful villains and emerged victorious, but he's never encountered someone as intellectually formidable as The Leader. Is he ready for this challenge? The setup in Captain America 4 suggests it's not just about the next Avengers film but also sets the stage for the Thunderbolts movie. The Leader's actions may undermine the symbol of Captain America, potentially ushering in a darker era for the MCU.AnswerSee Results