Marvel fans were buzzing when Steven Yeun was first announced to play Bob, aka The Sentry, in the upcoming Thunderbolts movie. The Sentry, known in the comics as Robert "Bob" Reynolds, is one of Marvel's most powerful and complex heroes, grappling with immense strength and a dangerous alter ego, the Void However, Yeun’s departure from the project in early 2024 left many wondering what happened.
The real reason behind Yeun’s exit was scheduling conflicts caused by production delays. The Thunderbolts film was postponed due to the 2023 Hollywood writers' and actors' strikes, which overlapped with Yeun’s commitments to other projects, including Bong Joon-ho’s film Mickey 17 Yeun himself confirmed that the timing and shifting schedules forced him to step away, though he remains open to future Marvel roles
Lewis Pullman has since taken over the role of Bob/Sentry, and early reactions from fans and critics have been overwhelmingly positive, with many praising Pullman’s performance as a perfect fit for the troubled superhero Thunderbolts, featuring a team of anti-heroes and the formidable Sentry, is set to hit theaters on July 2, 2025
