14. Winston Churchill – Gary Oldman in ‘Darkest Hour’
Gary Oldman’s remarkable transformation into Winston Churchill in ‘Darkest Hour’ (2017) earned him the Best Actor Oscar. Oldman’s detailed performance—complete with prosthetics and Churchill’s booming oratory—brought fresh insight to the larger-than-life British leader, complementing John Lithgow’s later portrayal in ‘The Crown.’ (History Extra).
