The introduction of Robert Reynolds, aka the Sentry, into the Marvel Cinematic Universe in the upcoming Thunderbolts* movie is one of the most intriguing additions to the franchise since its inception. Lewis Pullman has been cast in the role, prompting a mixed (but largely positive) reaction from MCU fans. However, based on Pullman’s past roles, there are plenty of reasons to believe he’ll be brilliant as Reynolds, the Sentry, and the character’s dark alter-ego, the Void.