Brave New World brings back one of the Marvel Cinematic Universe’s most underutilized villains after a 16-year absence. Samuel Sterns (Tim Blake Nelson) was last seen in 2008’s The Incredible Hulk when exposure to Bruce Banner’s blood triggered his transformation.

In Captain America: Brave New World 's post-credits scene, Sam Wilson/Captain America (Anthony Mackie) visits the villainous Samuel Sterns/the Leader (Tim Blake Nelson) in the high-security prison known as the Raft. There, Sterns warns Sam of a major new calamity.

Brave New World has one post-credits scene that explains how Captain America 4 connects to future Avengers movies.