Jack Reynor (born 23 January 1992) is an American-born Irish actor. He won the IFTA Award for Best Lead Actor – Film for his performance in What Richard Did (2012), and Best Supporting Actor for Sing Street (2016). His other notable films include Transformers: Age of Extinction (2014), Glassland (2014), Macbeth (2015), Midsommar (2019) and Lee Cronin's The Mummy (2026), as well as the television series Strange Angel (2018–19) and The Peripheral (2022).