David Harbour Gets Real About Shaping Red Guardian in Thunderbolts: A Messy, Lovable Anti-Hero

Image Credit: Marvel Studios

Listen up, Marvel fans—David Harbour is spilling the tea on his role as Red Guardian in the upcoming Thunderbolts (hitting theaters July 25, 2025), and it’s got me hyped! Known for stealing scenes as Jim Hopper in Stranger Things, Harbour’s back in the MCU as Alexei Shostakov, the Russian super-soldier with a big ego and an even bigger heart. In a recent chat with The Hollywood Reporter, Harbour opened up about the characteristics he wanted to explore with Red Guardian, and let’s just say he’s diving deep into the guy’s messy, human side. Social Media is buzzing with fans stoked for his take, and I’m here to break down why this anti-hero’s about to steal the show. Let’s get into it!


Red Guardian: More Than Just a Super-Soldier

If you caught Harbour as Red Guardian in Black Widow (2021), you know Alexei’s a larger-than-life dude—part boastful dad, part washed-up Soviet hero, with a knack for awkward humor. But for Thunderbolts, Harbour wanted to peel back the layers and show what makes this guy tick. According to The Hollywood Reporter, he was drawn to Red Guardian’s “complexity” and the chance to explore his flaws, relationships, and redemption arc. “There’s a lot of complexity there,” Harbour said, hinting at a character who’s not just punching bad guys but wrestling with his past.

He’s not your typical MCU hero, and that’s what Harbour loves. Red Guardian’s an anti-hero, stuck in a team of misfits like Yelena Belova (Florence Pugh), Bucky Barnes (Sebastian Stan), and Taskmaster (Hannah John-Kamen). Harbour told THR he wanted to lean into Alexei’s “bad qualities” and how they clash with his teammates, creating a dynamic where they “mess with each other” and “get under the hoods” of one another. It’s less about being a shiny Avenger and more about being a flawed, provocative mess. X is eating it up, with @THR tweeting, “David Harbour describes some of the characteristics he wanted to explore with his character in #Thunderbolts*,” and fans replying with fire emojis and “Red Guardian’s gonna carry this!”


A Team of Chaos and Camaraderie

What’s got Harbour so excited about Thunderbolts? The cast chemistry, for one. He raved to CBR about how the ensemble—Wyatt Russell, Florence Pugh, Sebastian Stan, Hannah John-Kamen, and Julia Louis-Dreyfus—brought a “camaraderie” that made filming his best movie experience yet. “We really admired each other for each other’s bad qualities, too,” he said, explaining how they played off each other’s rough edges to build a team that “doesn’t want to be a team.”

Harbour wanted Red Guardian to be the guy who stirs the pot, poking at his teammates’ insecurities while showing his own. Think of him as the loud uncle at a family reunion who’s both annoying and weirdly lovable. He’s not afraid to be a jerk, but Harbour also wanted to explore Alexei’s softer side, especially his ties to Yelena and Natasha Romanoff’s “family” from Black Widow.


Channeling Personal Struggles into Art

Harbour’s approach to Red Guardian isn’t just about flexing his acting chops—it’s personal. In a GQ interview, he got candid about channeling life’s impermanence into his work, especially after big changes like wrapping Stranger Things and navigating his split from Lily Allen. He’s always been open about his mental health, revealing on the Blank Podcast that acting is a “lifeline” for his bipolar disorder, letting him pour his emotions into characters like Red Guardian. “When I’m not acting, I usually have the most problems,” he said.

For Thunderbolts, Harbour wanted to explore Red Guardian’s search for meaning, mirroring his own reflections. Alexei’s a guy who’s been through the wringer—glory days gone, stuck in a world that’s moved on—and Harbour leaned into that sense of being lost. He told THR he wanted to show Red Guardian’s “provocative” side, someone who’s not afraid to challenge others or himself, even if it makes him look like a fool. It’s raw, it’s real, and it’s why X fans are calling him a “genius” for bringing so much heart to a comic-book role.


A Red Guardian Reborn

Harbour’s no stranger to reinventing characters. In Stranger Things, he pushed for Hopper to be a total mess in Season 1, eating donuts and letting himself go to embody the character’s brokenness. He’s taking a similar approach with Red Guardian, but this time, it’s about rebirth. In Collider, he teased that Thunderbolts lets him “reinvent” Alexei, exploring threads of his life only hinted at in Black Widow. “We get to see a lot more of him,” he said, promising surprises that’ll “play big” in the MCU.

What kind of surprises? Harbour’s keeping mum, but he hinted to THR that Red Guardian’s arc involves redemption and wrestling with his anti-hero status. Maybe we’ll see him confront his Soviet past or step up as a flawed father figure to Yelena. Whatever it is, Harbour’s pumped, telling CBR, “I just fell in love” with the filming process, thanks to the cast and director Jake Schreier. 


Why I’m Stoked

Look, I’m a sucker for Harbour’s work—Hopper’s gruff heart in Stranger Things, his goofy charm in Violent Night—and his take on Red Guardian is shaping up to be next-level. The way he’s diving into Alexei’s messy, complex soul, balancing humor with pain, makes me think Thunderbolts is gonna be more than just a popcorn flick. Harbour’s not just phoning it in; he’s crafting a character who’s flawed, funny, and deeply human. Plus, that cast? That chemistry? I’m already sold.

With Thunderbolts dropping July 25, 2025, I’m counting down the days to see Harbour’s Red Guardian strut, stumble, and maybe even save the day. Alexei’s not perfect, but that’s why we’ll love him.


Get Ready for Thunderbolts

David Harbour’s peeling back Red Guardian’s bravado to show us a guy who’s messy, provocative, and searching for redemption, and I’m here for it. Thunderbolts is shaping up to be a wild ride, with Harbour and his anti-hero squad ready to shake up the MCU. Check out The Hollywood Reporter for his full comments, and keep an eye on X for more fan hype as the release date nears. Red Guardian’s about to steal our hearts—flaws and all. Who’s ready?