Jonjo O'Neill
Biography
Jonjo O'Neill is an actor from Northern Ireland known for his stage and television work. O'Neill was born in Belfast, grew up in the Whiterock Road area and was educated at St Mary's Grammar School. Growing up he was passionate about musical theatre and was a member of Ulster Youth Theatre and performed with the Ulster Theatre Company. In 1996 at the age of 18 he won a place and a full scholarship to the Guildford School of Acting, and moved to England. His first television role was the year he graduated from drama school, in Extremely Dangerous (1999). A member of the Royal Shakespeare Company (RSC) 2009-2011 ensemble, his roles included Mercutio in Romeo and Juliet, Orlando in As You Like It, and Launcelot in Morte D'Arthur. His performances during the RSC's six-week residency at Park Avenue Armory in New York were hailed as "forceful" and "irresistible." At the 2012 World Shakespeare Festival in Stratford-upon-Avon, O'Neill played the title role in Roxana Silbert's production of Richard III at the Swan Theatre. In 2012 he won praise for his performance in Lucy Prebble's play The Effect at the Royal National Theatre headlining alongside Billie Piper, whom he later appeared alongside in the 2013 fiftieth anniversary episode of Doctor Who: "The Day of the Doctor". He also appeared in "The Mortal Remains," the final vignette in the Coen brothers's film The Ballad of Buster Scruggs (2018).
Known For
All Movies (17)
- All the Old Knives2022 · as Ernst Pul
- Operation Mincemeat2022 · as Teddy
- Here Before2022 · as Brendon
- Rare Beasts2021 · as Dougie
- The Octopus Nest2019 · as Timothy
- The Ballad of Buster Scruggs2018 · as Englishman (segment "The Mortal Remains")
- On Chesil Beach2018 · as Phil
- Oasis2017 · as David Morgan
- Dragonheart 3: The Sorcerer's Curse2015 · as Traevor
- Doctor Who: The Day of the Doctor2013 · as McGillop
- Bad Sugar2012 · as Lipton
- RSC Live: As You Like It2010 · as Orlando
- RSC Live: The Comedy of Errors2009 · as Dromio of Syracuse
- Defiance2008 · as Lazar
- The Year London Blew Up2005 · as Harry Duggan
- Murphy's Stroke1980 · as Jockey
- The Gentleman Thief— · as Peter Scott
All TV Shows (20)
- The Day of the Jackal2024 · as Edward Carver
- Nightsleeper2024 · as Mark Hudson
- The New Look2024 · as Bernard Dior
- Andor2022 · as Captain Kaido
- Bad Sisters2022 · as Donal Flynn
- Dalgliesh2021 · as Julius Marsh
- Stephen2021 · as DI Shaun Keep
- Bloodlands2021 · as Ryan Savage
- Industry2020 · as Robin Williamson
- The Queen's Gambit2020 · as Mr. Ganz
- Pennyworth: The Origin of Batman's Butler2019 · as Aleister Crowley
- Patrick Melrose2018 · as Seamus Dourke
- Oasis2017 · as David Morgan
- Fortitude2015 · as Ciaran Donnelly
- Constantine2014 · as Gary Lester
- Homeland2011
- Vera2011 · as Gary Tovey
- Murphy's Law2001 · as Johnny McEvoy
- Band of Brothers2001 · as Replacement One
- A Touch of Frost1992 · as Jeffrey Meadows







