Meet the New Faces Joining Invincible Season 4—and the Heroes and Villains They'll Become

Well, here we go again—just when you thought superhero shows had peaked, Invincible is ramping up for season 4 on Amazon Prime. Look, superhero burnout is definitely a thing, but honestly? Invincible keeps finding ways to stay interesting. And now they’ve dropped some big casting news that’s guaranteed to perk up even the most jaded comic fan. So let’s break down who’s joining the mayhem this season, and exactly who they’ll be voicing.

New Power Players: Who's Showing Up in Season 4?

Amazon’s not messing around. The new voice cast for Invincible season 4 has some serious pedigree—and there’s a bit of a Walking Dead reunion in the mix too.

• Lee Pace as Thragg: Lee Pace (basically an expert at playing charming but evil dudes) will take on General Regent Thragg. If you haven’t read the comics, Thragg is not just any old villain—he’s pretty much the top dog among the Viltrumites. He’s their leader following Viltrum’s own Civil War, and get this: he’s even stronger than Omni-Man. Yeah, that Omni-Man. According to the show's lore, he was bred specifically to be this powerful, and his combat skills are supposedly unmatched. In short, if you liked how threatening Pace was in 'Guardians of the Galaxy,' get ready for even more of that energy.
• Danai Gurira as Universa: Another familiar face from The Walking Dead, Danai Gurira is voicing Universa. She’s the ruler of a distant planet that, and I’m quoting here, 'lies outside the observable universe.' Nobody’s saying much about the planet’s name, but Universa’s basically here to steal energy from other worlds to save her own people. Her weapon of choice? The Staff of Leadership—yep, that’s what’s powering her up. If you’re trying to picture her vibe, imagine a less-glamorous, more desperate version of Dar-Benn from Marvel’s 'The Marvels.'
• Matthew Rhys as Dinosaurus: Matthew Rhys is joining as Dinosaurus—a giant, red, sort-of-homicidal dinosaur who’s actually the alter ego of a regular scientist named David Anders. The twist: Anders is from Earth, not some alien planet, and has a personality disorder that makes him flip between smart scientist and dangerous dino. In season 4, Dinosaurus will only show up in a limited role (his debut episode is called 'You Gave Me No Choice'), but according to the showrunners, they’re setting him up to be a major villain down the line.

Still Here: The Main Crew

Don’t worry—they’re not replacing the regulars. Most of the classic Invincible voice cast is sticking around:

Steven Yeun (Mark Grayson/Invincible), Sandra Oh (Debbie Grayson), J.K. Simmons (Nolan Grayson/Omni-Man), Christian Convery (Oliver Grayson), and Gillian Jacobs (Atom Eve) will all be back. So it’ll still feel like the show you know—even as the stakes get way, way bigger.

When Does All This Go Down?

It’s tempting to get hyped now, but you’ll have to wait a bit. Invincible Season 4 will make its big return starting March 18, 2026 on Prime Video, with new episodes hitting weekly. Here’s the current release schedule (titles TBD for most of them):

Final Thoughts (and the Obligatory Speculation)

So yeah, Invincible season 4 is shaping up to be wild—not just because of the returning cast, but because these new characters aren’t exactly small potatoes in the comics. Lee Pace’s Thragg alone is the kind of character who could reshape the entire show. If you kept up after last season’s cliffhanger, you’re probably counting down already. If not, well, maybe these additions will be enough to win you back.

As far as superhero TV goes, this is about as promising as it gets right now. March 2026 can’t come fast enough.