
Jack Gleeson (born 20 May 1992) is an Irish actor who played Joffrey Baratheon on the HBO television series Game of Thrones (2011–2014). Following this role, Gleeson took a hiatus from acting, but has since taken part in independent theatre and the 2020 BBC miniseries Out of Her Mind. He has since then appeared in the 2023 Irish thriller film In the Land of Saints and Sinners.

Batman Begins
2005 · as Little Boy

Reign of Fire
2002 · as Kid (uncredited)

In the Land of Saints and Sinners
2023 · as Kevin Lynch

Shrooms
2007 · as Lonely Twin

A Shine of Rainbows
2009 · as Seamus

The Eye of the Sunrise
2025 · as Thomas Wentworth

Learners
2024 · as Charlie

All Good Children
2010 · as Dara

The Curse of Kirrin Island
2023 · as Thomas Wentworth

Mystery at the Prospect Hotel
2024 · as Wentworth

Electric Burma: The Concert for Aung San Suu Kyi - Words I Never Said
2016 · as Self

Rebecca’s Boyfriend
2021 · as Rory

With Compliments from the Gentlemen Across the Bar in Oman
2025 · as Self