Jack Gleeson

Born: 20 May 1992

Age:

Years Active: 2002-present

Jack Gleeson (born 20 May 1992) is an Irish actor. He is best known for portraying Joffrey Baratheon in the HBO television series Game of Thrones (2011–2014). Following this role, Gleeson took a six-year hiatus from screen acting. He returned to the screen in 2020 and has since appeared in the Irish film In the Land of Saints and Sinners (2023) and the series The Sandman (2025) and House of Guinness (2025).

Jack Gleeson was born in Cork, Ireland, and raised in Ranelagh, Dublin, where he attended Gonzaga College. Both of his parents are lawyers. He has two older sisters, Rachel and Emma, who are also involved in Irish theatre. He attended drama classes with them when he was young, and also performed in youth theatre.

Gleeson attended Trinity College Dublin between 2010 and 2015. He studied philosophy and theology and was elected a scholar in 2012. At Trinity, Gleeson was a member of DU Players, where he met his future co-founders of Collapsing Horse Theatre Company.