In the original version of Captain America: Brave New World, the plan was for Seth Rollins to play a member of the Serpent Society. Julius Onah talked about the role, his admiration for Seth Rollins, but why he ended up removing his scenes from the movie:

Seth Rollins previously filmed for "Captain America: Brave New World". However, Rollins recently confirmed that he is not in the movie, as the scenes that he filmed did not make the final cut. Speaking with ComicBook’s Chris Killian, with director Julius Onah discussed why Seth Rollins’ role didn’t make the final cut of the film.

Brave New World director Julius Onah has revealed why Seth Rollins and the Serpent Society were cut from the movie, suggesting it came down to the team not fitting the story's