
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

TV
Homeland
2011

TV
Andor
Captain Kaido
2022

TV
Vera
Gary Tovey
2011

TV
Industry
Robin Williamson
2020

TV
The Day of the Jackal
Edward Carver
2024

TV
The Queen's Gambit
Mr. Ganz
2020

TV
Band of Brothers
Replacement One
2001

TV
A Touch of Frost
Jeffrey Meadows
1992

TV
Pennyworth: The Origin of Batman's Butler
Aleister Crowley
2019

TV
Constantine
Gary Lester
2014

TV
Dalgliesh
Julius Marsh
2021

TV
Patrick Melrose
Seamus Dourke
2018

TV
Bad Sisters
Donal Flynn
2022

Film
The Ballad of Buster Scruggs
Englishman (segment "The Mortal Remains")
2018

TV
The New Look
Bernard Dior
2024

TV
Fortitude
Ciaran Donnelly
2015

TV
Murphy's Law
Johnny McEvoy
2001

TV
Bloodlands
Ryan Savage
2021

TV
Nightsleeper
Mark Hudson
2024

TV
Stephen
DI Shaun Keep
2021
Filmography
2024TVThe Day of the Jackalas Edward Carver2024TVNightsleeperas Mark Hudson2024TVThe New Lookas Bernard Dior2022TVAndoras Captain Kaido2022TVBad Sistersas Donal Flynn2022FilmAll the Old Knivesas Ernst Pul2022FilmOperation Mincemeatas Teddy2022FilmHere Beforeas Brendon2021TVDalglieshas Julius Marsh2021TVStephenas DI Shaun Keep2021FilmRare Beastsas Dougie2021TVBloodlandsas Ryan Savage2020TVIndustryas Robin Williamson2020TVThe Queen's Gambitas Mr. Ganz2019FilmThe Octopus Nestas Timothy2019TVPennyworth: The Origin of Batman's Butleras Aleister Crowley2018FilmThe Ballad of Buster Scruggsas Englishman (segment "The Mortal Remains")2018TVPatrick Melroseas Seamus Dourke2018FilmOn Chesil Beachas Phil2017FilmOasisas David Morgan2017TVOasisas David Morgan2015FilmDragonheart 3: The Sorcerer's Curseas Traevor2015TVFortitudeas Ciaran Donnelly2014TVConstantineas Gary Lester2013FilmDoctor Who: The Day of the Doctoras McGillop2012FilmBad Sugaras Lipton2011TVHomeland2011TVVeraas Gary Tovey2010FilmRSC Live: As You Like Itas Orlando2009FilmRSC Live: The Comedy of Errorsas Dromio of Syracuse2008FilmDefianceas Lazar2005FilmThe Year London Blew Upas Harry Duggan2001TVMurphy's Lawas Johnny McEvoy2001TVBand of Brothersas Replacement One1992TVA Touch of Frostas Jeffrey Meadows1980FilmMurphy's Strokeas Jockey—FilmThe Gentleman Thiefas Peter Scott