The Sentry (Robert "Bob" Reynolds) and The Void are respectively a superhero and supervillain appearing in American comic books published by Marvel Comics. Created by Paul Jenkins and Jae Lee, with uncredited conceptual contributions by Rick Veitch, the characters first appeared in The Sentry #1 (2000).[1] Robert "Bob" Reynolds / Sentry and the Void appears in the Marvel Cinematic Universe (MCU) film Thunderbolts* (2025), portrayed by Lewis Pullman. He will reprise the role in Avengers: Doomsday (2026).