Fionn Whitehead (RP: fɪn) (born July 18, 1997) is an English actor, known for playing the lead role in the 2017 film Dunkirk. Whitehead's acting was first credited in the 2016 ITV miniseries Him. Description above from the Wikipedia article Fionn Whitehead, licensed under CC-BY-SA, full list of contributors on Wikipedia. more