What is the name of the British military commander played by Kenneth Branagh in Dunkirk?

Kenneth Branagh plays Commander Bolton in Christopher Nolan’s Dunkirk.

Commander Bolton is a senior Royal Navy officer supervising the evacuation from the mole at Dunkirk. He helps coordinate the movement of soldiers toward civilian vessels and remains at the harbor as the military situation deteriorates.

Dunkirk, released in 2017, dramatizes Operation Dynamo, the evacuation of Allied troops from northern France between 26 May and 4 June 1940. Nolan structures the film around three interlocking perspectives: land, sea, and air. These strands cover different time spans before converging during the evacuation.

Bolton is sometimes mistaken for a generic admiral or captain because the film emphasizes the larger operation rather than lengthy character biographies. The character is fictionalized for the drama, while the evacuation itself was a real historical event involving British and Allied forces.