Domhnall Gleeson (/ˈdoʊnəl ˈɡliːsən/; born 12 May 1983) is an Irish actor and writer. He is the son of actor Brendan Gleeson, whom he has appeared alongside in several films and theatre projects. He received a Bachelor of Arts in Media Arts from Dublin Institute of Technology.
During the early stages of his career, Gleeson directed and wrote several short films, garnered a Tony Award nomination in 2006 for his role in the Broadway production The Lieutenant of Inishmore, and had a supporting role in Never Let Me Go. He became known to a wider audience for his portrayal of Bill Weasley in the Harry Potter film franchise (2010-2011), Konstantin Levin in Anna Karenina (2012), Tim Lake in About Time, and Russell Allen Phillips in Angelina Jolie's war drama Unbroken (2014).