Nathaniel Richards, dubbed Kang the Conqueror, is one of the hostile Variants of his original self. He sought to conquer as many alternate universes as he could during the Multiversal War. He was able to return after He Who Remains' death and became the new ruler of the Time Variance Authority.
Add actors/actresses and cast the roles/films/series that they were rumored, considered, offered, negotiated, auditioned, turned down, and/or originally casted before getting recasted. (Please double-check in research.)
