[1] He lives with his parents, Andrew and Lisa Hynes, his elder brother Milo, and younger sister Lara just outside Oxford.
In March 2020 he shaved his head live on Instagram to raise money for The Trussell Trust, a network of foodbanks in the UK.
[citation needed] Hynes began his career in an acclaimed performance as Franzl in Intermezzo produced by Bruno Ravella at Garsington Opera.
From 2017 to 2019 he starred as Klaus Baudelaire in three seasons of the Netflix mystery-drama A Series of Unfortunate Events.
[5] Along with the main cast of The Great, he was nominated for a Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series in 2021.