So Brandt is still alive, and perhaps he’ll appear alongside Attwell’s character in Mission: Impossible 7.
Of course, Hayley Atwell won’t be the first major MCU veteran to have a prominent role in the Mission: Impossible franchise.
Renner was absent from Fallout due to scheduling conflicts with Avengers: Endgame, and while there was discussion of having Brandt briefly appear, only to be killed off in the beginning of the movie, Renner wasn’t game for that.
Jeremy Renner, the MCU’s Hawkeye, played William Brandt in Ghost Protocol and Rogue Nation.