Detective William Somerset is one of the two protagonists of the 1995 crime thriller film Se7en. He is an aging, cynical cop who tries to apprehend a serial killer who patterns his murders after the Seven Deadly Sins.
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.)