
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).
Movie Appearances

RSC Live: The Comedy of Errors
as Dromio of Syracuse
2009

The Octopus Nest
as Timothy
2019

All the Old Knives
as Ernst Pul
2022

Operation Mincemeat
as Teddy
2022
The Gentleman Thief
as Peter Scott
TBA

Dragonheart 3: The Sorcerer's Curse
as Traevor
2015

Doctor Who: The Day of the Doctor
as McGillop
2013

Defiance
as Lazar
2008

Bad Sugar
as Lipton
2012

Oasis
as David Morgan
2017

On Chesil Beach
as Phil
2018

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

The Year London Blew Up
as Harry Duggan
2005

Rare Beasts
as Dougie
2021

RSC Live: As You Like It
as Orlando
2010

Here Before
as Brendon
2022

Murphy's Stroke
as Jockey
1980
TV Appearances

Patrick Melrose
as Seamus Dourke
2018

Vera
as Gary Tovey
2011

Stephen
as DI Shaun Keep
2021

Dalgliesh
as Julius Marsh
2021

Constantine
as Gary Lester
2014

Fortitude
as Ciaran Donnelly
2015

Oasis
as David Morgan
2017

A Touch of Frost
as Jeffrey Meadows
1992

The New Look
as Bernard Dior
2024

Bloodlands
as Ryan Savage
2021

Bad Sisters
as Donal Flynn
2022

Homeland
2011