Gary Oldman
The British actor has appeared in roles as diverse a dread-locked pimp who thinks he’s black (True Romance) and a wheelchair-bound madman with half a face (Hannibal). But those transformations pale in comparison to his Oscar-winning turn as Winston Churchill in Darkest Hour. Oldman is a dead ringer for the UK’s wartime leader. In fact, the costume and make-up department were told to dial back their efforts, so some semblance of Oldman was still vaguely recognisable on film.