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.
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If it wasn't already obvious, Doctor Who is slowly going bad, thanks to poorly written stories, not that great characters, and of course, the Timeless Children. So, I suggest giving the series a soft reboot.