Khan Noonien Singh is an antagonist in the Star Trek franchise and the main antagonist of the Star Trek episode "Space Seed", Star Trek II: The Wrath of Khan, and Star Trek: Into the Darkness.
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.)
