
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 …
Known For
The Ballad of Buster Scruggs
Englishman (segment "The Mortal Remains")
Doctor Who: The Day of the Doctor
McGillop
Defiance
Lazar
Operation Mincemeat
Teddy
Fortitude
Ciaran Donnelly
All the Old Knives
Ernst Pul
On Chesil Beach
Phil
Dragonheart 3: The Sorcerer's Curse
Traevor
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Filmography
Acting (38)
Movies (17)
All the Old Knives
2022as Ernst Pul
Operation Mincemeat
2022as Teddy
Here Before
2022as Brendon
Rare Beasts
2021as Dougie
The Octopus Nest
2019as Timothy
The Ballad of Buster Scruggs
2018as Englishman (segment "The Mortal Remains")
On Chesil Beach
2018as Phil
Oasis
2017as David Morgan
Dragonheart 3: The Sorcerer's Curse
2015as Traevor
Doctor Who: The Day of the Doctor
2013as McGillop
Bad Sugar
2012as Lipton
RSC Live: As You Like It
2010as Orlando
RSC Live: The Comedy of Errors
2009as Dromio of Syracuse
Defiance
2008as Lazar
The Year London Blew Up
2005as Harry Duggan
Murphy's Stroke
1980as Jockey
The Gentleman Thief
as Peter Scott
Television (21)
The Day of the Jackal
2024as Edward Carver
The New Look
2024as Bernard Dior
Nightsleeper
2024as Mark Hudson
Andor
2022as Captain Kaido
Bad Sisters
2022as Donal Flynn
Dalgliesh
2021as Julius Marsh
Stephen
2021as DI Shaun Keep
Bloodlands
2021as Ryan Savage
Industry
2020as Robin Williamson
The Queen's Gambit
2020as Mr. Ganz
Pennyworth: The Origin of Batman's Butler
2019as Aleister Crowley
Patrick Melrose
2018as Seamus Dourke
Oasis
2017as David Morgan
Fortitude
2015as Ciaran Donnelly
Constantine
2014as Gary Lester
Homeland
2011
Vera
2011as Gary Tovey
Doctor Who
2005as McGuillop
Band of Brothers
2001as Replacement One
Murphy's Law
2001as Johnny McEvoy
A Touch of Frost
1992as Jeffrey Meadows
Crew (1)
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