'Invincible' Season 4 sees Steven Yeun as Mark Grayson and the entire cast is stacked with stars

Ahead of 'Invincible's' new season release, we take a look at all the major characters from the hit sci-fi superhero series.
PUBLISHED MAR 18, 2026
A still of Steven Yeun as Mark Grayson in 'Invincible' Season 4 (Cover image credit: Getty Images, photo by Han Myung-Gu | Courtesy of Prime Video)
A still of Steven Yeun as Mark Grayson in 'Invincible' Season 4 (Cover image credit: Getty Images, photo by Han Myung-Gu | Courtesy of Prime Video)

'Invincible' has made a mark as one of the best animated sci-fi superhero series on Prime Video. Created by Robert Kirkman, based on the Image Comics comic book series of the same name, he co-created it with Cory Walker and Ryan Ottley. The series follows Mark Grayson, a half-human, half-Viltrumite, as he tries to figure out what it means to be a hero. In the three seasons so far, the show has proved that being a superhero isn't as fancy as the idea seems. Throw in shocking twists, characters operating in the gray, and high-octane action, 'Invincible' has made a case for one of the best superhero shows on streaming.

Ahead of Season 4's release, the focus shifts back to the marquee voice cast for the series. 'Invincible' features a stacked ensemble including Lee Pace, Matthew Rhys, Danai Gurira, Steven Yeun, Sandra Oh, and J.K. Simmons, alongside Seth Rogen, Walton Goggins, Gillian Jacobs, Zazie Beetz, and Simu Liu. The official synopsis for Season 4 reads, "While the world recovers from the global catastrophe of last season, a changed Mark struggles with guilt as he fights to protect his home and the people he loves, setting him on a collision course with a powerful new threat that could alter the fate of humanity forever." 'Invincible' Season 4 is set to release on March 18. With the release incoming, we take a look at who plays whom in the upcoming chapter.

Steven Yeun as Mark Grayson

Steven Yeun as Mark Grayson (Image credit: Getty Images, photo by John Nacion | Courtesy of Prime Video)
Steven Yeun as Mark Grayson (Image credit: Getty Images, photo by John Nacion | Courtesy of Prime Video)

Yeun was one of the major names who made a strong impression on 'The Walking Dead'. The actor is also best known for 'Minari' and Netflix's 'Beef.

Sandra Oh as Debbie Grayson

Sandra Oh as Debbie Grayson (Image credit: Getty Images, photo by Arturo Holmes | Courtesy of Prime Video)
Sandra Oh as Debbie Grayson (Image credit: Getty Images, photo by Arturo Holmes | Courtesy of Prime Video)

The 'Good Fortune' star voices Mark Grayson's mother, Debbie, on the show. Her other major credits include 'Grey's Anatomy' and 'Killing Eve'.

Seth Rogen as Allen the Alien

Seth Rogen as Allen (Image credit: Getty Images, photo by Amy Sussman | Courtesy of Prime Video)
Seth Rogen as Allen (Image credit: Getty Images, photo by Amy Sussman | Courtesy of Prime Video)

Known for his comedic chops, Seth Rogen has made a name for himself with 'The Lion King' and 'The Super Mario Bros. Movie'. He plays Allen the alien, Mark's loyal one-eyed ally in the series.

Gillian Jacobs as Atom Eve

Gillian Jacobs as Atom Eve (Image credit: Getty Images, photo by Cindy Ord | Courtesy of Prime Video)
Gillian Jacobs as Atom Eve (Image credit: Getty Images, photo by Cindy Ord | Courtesy of Prime Video)

Jacobs voices Mark's girlfriend, Samantha/Atom Eve, introduced as a superhero figuring out her place and identity in the world, has been a perennial fan-favorite. Her other voice projects include 'Robot Chicken' and 'American Dad!'

Danai Gurira as Universa

Danai Gurira as Universa (Image credit: Getty Images, photo by Dominique Charriau | Courtesy of Prime Video)
Danai Gurira as Universa (Image credit: Getty Images, photo by Dominique Charriau | Courtesy of Prime Video)

A villain with a deadly electric staff as her weapon of choice. Universa is one of the major threats in the series played by another 'TWD' star, Danai Gurira.

Lee Pace as Thragg

Lee Pace as Thragg (Cover image credit: Getty Images, photo by Jamie McCarthy | Courtesy of Prime Video)
Lee Pace as Thragg (Image credit: Getty Images, photo by Jamie McCarthy | Courtesy of Prime Video)

Pace plays the legendary comics villain, Thragg, the leader of the Viltrumites. The actor is known for 'The Hobbit' trilogy and Apple TV's space opera, 'Foundation'.

Grey DeLisle as Shrinking Rae

Grey DiLisle as Shrinking Rae (Cover image credit: Getty Images, photo by Thomas Cooper | Courtesy of Prime Video)
Grey DiLisle as Shrinking Rae (Image credit: Getty Images, photo by Thomas Cooper | Courtesy of Prime Video)

Per EW, DeLisle ('Scooby-Doo') voices multiple characters, including Monster Girl, Betsy Wilkins, Thula, Olga, and Polly, along with Shrinking Rae.

J.K. Simmons as Omni-Man

J.K. Simmons as Omni-Man (Image credit: Getty Images, Photo by Steve Granitz | Courtesy of Prime Video)
J.K. Simmons as Omni-Man (Image credit: Getty Images, Photo by Steve Granitz | Courtesy of Prime Video)

The 'Spider-Man' star has dished out an impeccable performance as Omni-Man, Mark's dad, Nolan Grayson, and the planet's most powerful superhero.

Walton Goggins as Cecil Stedman

Walton Goggins as Cecil Stedman (Image credit: Getty Images, photo by Frazer Harrison | Courtesy of Prime Video)
Walton Goggins as Cecil Stedman (Image credit: Getty Images, photo by Frazer Harrison | Courtesy of Prime Video)

The 'Fallout' star voices Cecil Stedman, the head of the Global Defense Agency (GDA), known for his tough exterior and ruthless decision-making.

Fans can watch 'Invincible' on Prime Video.

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