President John F. Kennedy

He arrives in The Crown as the young, glamorous American president, all easy charm and photogenic confidence, his marriage to Jackie presented as a kind of royalty in its own right. Against the stiffness of Buckingham Palace, he is modern, magnetic, and very aware of the effect he has on a room.

Michael C. Hall plays him with a canny mix of warmth and calculation, letting the famous charisma sit right alongside something colder and more assessing underneath. The show uses him to needle at the monarchy's insecurities about relevance and modernity, and Hall makes that contrast feel effortless rather than pointed.