Steven Yeun Reportedly Set to Play The Sentry in Marvel’s “Thunderbolts”

While we still don’t know a whole lot about Marvel’s upcoming Thunderbolts film, it seems we have a very good idea who Steven Yeun will be playing. The Walking Dead and Invincible creator Robert Kirkman has said Yeun will be playing The Sentry in the film.

  • Yeun, who has starred in both The Walking Dead and Invincible, joined the cast of Thunderbolts back in February.
  • It has been speculated for some time that the actor would be taking on the role of Robert Reynolds, better known by his superhero name of The Sentry.
  • Kirkman, in an interview with comic book artist David Finch, confirmed that to be the case, saying “My good friend Steven Yeun is playing The Sentry in a movie. He called me and he said ‘I just came back from a costume fitting for The Sentry, I guess I only do superheroes that are yellow and blue.’”
  • Yeun stars as the titular hero in Kirkman’s animated Invincible series on Amazon, in which his character dons a yellow and blue super suit.
  • The Sentry is a very interesting and incredibly powerful character in Marvel Comics.
  • He is said to have “the power of a million exploding suns” and has shown it by taking on some of the most powerful characters in the Marvel Universe.
  • However, he is also incredibly unstable and the dark side of his powers becomes a being known as the Void, one of the most dangerous villains in the Marvel Universe.
  • Sentry has been a member of the Avengers as well as Norman Osborn’s Dark Avengers, which could be a tie to this team of Thunderbolts.
  • Marvel has not yet confirmed Yeun’s role in the film.
  • Yeun joins a cast that includes:
    • Florence Pugh as Yelena Belova
    • Sebastian Stan as the Winter Soldier
    • David Harbour as Red Guardian
    • Julia Louis-Dreyfus as Valentina Allegra de Fontaine
    • Harrison Ford as “Thunderbolt” Ross
    • Wyatt Russell as US Agent
    • Hannah John-Kamen as Ghost
    • Olga Kurylenko as Taskmaster

About Thunderbolts:

  • Not much is known about the plot of the film, but in the comics, it revolves around a group of villains who are sent on missions commissioned by the government.
  • Lee Sung Jin, creator and showrunner of Netflix’s Beef, recently took over writing duties for the film.
  • Thunderbolts is one of several Marvel films recently delayed and is currently slated to hit theaters on July 25th, 2025.
Mike Mack
Mack is the Editorial Director for Marvel and ESPN content and he has covered comic cons, theme park events, video game showcases and other fun events. He is a fan of theme parks, sports, movies, Marvel Comics and is a self-proclaimed "nerd."