Fionn Whitehead (/fɪn/; born 18 July 1997) is an English actor. He portrayed the lead role in the 2017 film Dunkirk and the 2018 film Black Mirror: Bandersnatch. His first acting credit was in the 2016 ITV miniseries Him.

Life
Whitehead was born on 18 July 1997. He was born in Richmond, London, to jazz musicians Tim and Linda Whitehead. He was named after Irish folk legend Fionn mac Cumhaill. Whitehead has two older 2 sisters, Maisie, a performance artist and Hattie, a singer, and one older brother, Sonny. Whitehead was raised "in an artistic household". Growing up, he aspired to be either a guitarist or a breakdancer. He began acting at the Orange Tree Theatre when he was 13 years old. Later he went to Orleans Park School. He then went to Richmond College and entered the National Youth Theatre's summer course. By 2015, he was an aspiring actor working at a coffee shop in Waterloo, London.