David Harbour, known for his role as Red Guardian in the upcoming film Avengers: Doomsday, shared his thoughts on why this 2026 MCU installment stands out as a groundbreaking project. The movie introduces the New Avengers, a team that elevates lesser-known anti-heroes into key players within the Marvel universe, with Harbour’s character positioned at their headquarters. During a conversation at Rose City Comic Con with ScreenRant’s Joe Decklemeier, Harbour praised the Russo brothers’ unique approach to blending drama and humor, comparing the film’s scale and quality to landmark MCU titles such as Captain America: Civil War and Avengers: Infinity War.
Harbour highlighted the Russos’ ability to coordinate large casts seamlessly, enhancing both the emotional and epic elements of the story. He explained,
“I was not even convinced when we started, and this movie’s gonna be really good. They have a special sauce. I don’t even really understand, but they [the Russos] just know how to do these things. And I think that as evidenced in Civil War, as evidenced in Infinity War, there’s something about the layers in which they put the comedy and the drama and the surprises and the scale and the epicness and all that stuff. It’s incredible.”
Reflecting on the set experience, Harbour shared his awe at the production’s magnitude, noting how each actor had their own trailer and how the environment constantly reminded him of the movie’s ambitious size. He remarked,
“I will say I’ve never been on a set like this in my life. I’ve never seen anything like this. You saw those chairs. So it’s like, every one of those guys and girls has a trailer. It’s just insane to look around the room and be like, ‘Oh my god, I’m in the movie. There’s what’s his face doing that speech.’ It’s just enormous.”
The Implications of Harbour‘s Reflections on Avengers: Doomsday
Avengers: Doomsday promises to be unmatched in complexity and scale, featuring at least twenty-seven significant characters, a new villain, and stakes that span across multiple universes. This colossal ensemble will require deft storytelling to give each character an arc that resonates while managing high expectations from fans worldwide.

Every MCU crossover has progressively pushed cinematic limits, from the original Avengers lineup in 2012 to the game-changing events of Avengers: Endgame in 2019. Now, with Avengers: Doomsday, Marvel aims to top these achievements by weaving a story that balances action, character development, and multiversal chaos, further elevating the stakes set by the previous sagas.
Assessing the Challenge and Promise Behind Avengers: Doomsday
The upcoming MCU movie is set to be one of Marvel’s most ambitious ventures, combining universes on an unprecedented scale. Such a vast event demands sophisticated visuals and a clear, cohesive narrative that honors the lengthy roster of characters. Maintaining clarity while showcasing universe-shifting conflicts is a primary challenge for the creators.
Marvel’s 2015 Secret Wars comics demonstrated how a multiversal storyline can succeed by centering on the humanity of its characters amid sprawling events. Avengers: Doomsday faces a similar challenge — sustaining emotional depth and clarity amid its extravagant plot. A key element in achieving this balance could be the casting of Robert Downey Jr. as Doctor Doom, indicating the film’s potential to ground its spectacle with powerful performances.
While the scale of Avengers: Doomsday astounds even its cast and crew, the film must also serve as a precursor to the even larger crossover planned for 2027 with Avengers: Secret Wars. Doomsday is expected to set the stage without revealing too much, preserving surprises and building momentum for what may become the most significant sci-fi cinematic event to date.
Notable Cast Members Lending Strength to the Story
The roster for Avengers: Doomsday features a diverse and dynamic lineup, with familiar faces and new heroes contributing to the storyline. Chris Hemsworth returns as Thor, adding his enduring heroism and power. Vanessa Kirby joins as Sue Storm, also known as the Invisible Woman, bringing determination and intelligence.
Joseph Quinn plays Johnny Storm, famously the Human Torch, infusing the cast with youthful energy and flamboyance, while Ebon Moss-Bachrach takes on Ben Grimm, also called The Thing, adding strength and heart. Together, this cast shapes a formidable force that promises to deliver an emotionally charged and thrilling experience.
