Jack Gleeson
Photo: Miguel Discart & Kiri Karma (Photos Vrac) · CC BY-SA 2.0

Person in history

Jack Gleeson

Jack Gleeson, Irish actor

Life at a glance

Born
1992 · May 20
Age this year
34No death recorded in our data
Known as
actor, film actor, and television actor. Citizenship: Ireland
Born
34th anniversary of their birth this year

Their story

Who they were

Personal life Gleeson divides his time between London , where he moved in 2015, and Dublin . [ 1 ] On 27 August 2022, he married his long-time girlfriend Róisín O'Mahony in a small Catholic ceremony in County Kerry . [ 2 ] Gleeson publicly supported the successful campaign to legalise abortion in Ireland in 2018. [ 3 ] ^ White, Hilary (31 July 2021). "Game of Thrones actor Jack Gleeson: 'All I wanted to do growing up was to act in a big film or TV show and I achieved my utmost dream' " .

Jack Gleeson 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).

Early life

Educated at: Trinity College, Dublin and Gonzaga College.

Early life 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. [ 1 ] He attended drama classes with them when he was young, and also performed in youth theatre. [ 2 ] [ 3 ] Gleeson attended Trinity College Dublin between 2010 and 2015. [ 4 ] He studied philosophy and theology and was elected a scholar in 2012.

Path and career

Career Gleeson began acting at the age of eight in the Independent Theatre Workshop. [ 1 ] [ 2 ] His first roles were in films such as Reign of Fire (2002), Batman Begins (2005), Shrooms (2007), and A Shine of Rainbows (2009). In 2010, he played a leading role in the film All Good Children , which was selected for the Directors' Fortnight at the Cannes Film Festival . [ 3 ] A reviewer for Variety considered Gleeson "the pic's big discovery". [ 4 ] In 2011,

Why this date

Jack Gleeson appears on our May 20 calendar for 1992 as a birth entry.

The world when they were born

Other entries we record for 1992.

Everything from 1992 →

Born the same day

Contemporaries — born the same year

Sources

Cite this page

“Jack Gleeson”, What's On This Date, https://whatsonthisdate.com/app/people/jack-gleeson, accessed October 28, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about Jack Gleeson

When was Jack Gleeson born?

May 20 1992.

How old would Jack Gleeson be today?

34 this year, based on the birth year we hold. We have no death record for them in our data, which is not proof either way.

Who else was born on May 20?

Josh O'Connor, Jamie Chadwick, Stéphane Mbia and others — the list is on this page and on the date page.

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