
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).
Gallery


Known For
Acting History
2024
The Day of the Jackal as Edward Carver
2024Nightsleeper as Mark Hudson
2024The New Look as Bernard Dior
2022Andor as Captain Kaido
2022Bad Sisters as Donal Flynn
2022All the Old Knives as Ernst Pul
2022Operation Mincemeat as Teddy
2022Here Before as Brendon
2021Dalgliesh as Julius Marsh
2021Stephen as DI Shaun Keep
2021Rare Beasts as Dougie
2021Bloodlands as Ryan Savage
2020The Queen's Gambit as Mr. Ganz
2019The Octopus Nest as Timothy
2019Pennyworth: The Origin of Batman's Butler as Aleister Crowley
2018The Ballad of Buster Scruggs as Englishman (segment "The Mortal Remains")
2018Patrick Melrose as Seamus Dourke
2018On Chesil Beach as Phil
2017Oasis as David Morgan
2017Oasis as David Morgan
2015Dragonheart 3: The Sorcerer's Curse as Traevor
2015Fortitude as Ciaran Donnelly
2014Constantine as Gary Lester
2013Doctor Who: The Day of the Doctor as McGillop
2012Bad Sugar as Lipton
2011Homeland
2011Vera as Gary Tovey
2010RSC Live: As You Like It as Orlando
2009RSC Live: The Comedy of Errors as Dromio of Syracuse
2008Defiance as Lazar
2005The Year London Blew Up as Harry Duggan
2001Band of Brothers as Replacement One
1992A Touch of Frost as Jeffrey Meadows
—The Gentleman Thief as Peter Scott









