Billy Jenkins (as a child in Season 1-2), Julian Baring (as an early teenager in Season 2),
Josh O'Connor (Season 3-4), and
Dominic West (Season 5-6) in The Crown (2016-present)
1Overlord of
Britain. 2Also ruler of
Ireland. 3Also ruler of
Scotland and Ireland. 4Lord Protector. 5Also ruler of
England and Ireland. Debatable or disputed rulers are in italics.