Usually Marvel is know for their secrecy and how tightly they keep the details of their films under wraps. But Marvel doesn't seem to be even trying very hard to hide the fact that one of the anti-heroes of "Thunderbolts*" isn't going to survive the film, or who that character is.

A TV spot for Thunderbolts* confirms Lewis Pullman's Sentry is stronger than all of the Avengers, and he's in the cast of Avengers: Doomsday.

On March 26, 2025, Marvel announced 27 cast members for Avengers: Doomsday. The list included Sebastian Stan, Florence Pugh, Wyatt Russell, David Harbour, Hannah John-Kamen, and Lewis Pullman — all featured in Thunderbolts*.