
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).…
Filmography

The Year London Blew Up
2005 · 9.0

Band of Brothers
2001 · 8.6

The Queen's Gambit
2020 · 8.4

Andor
2022 · 8.3

The Day of the Jackal
2024 · 8.2

Doctor Who: The Day of the Doctor
2013 · 8.2

The Octopus Nest
2019 · 8.0

Pennyworth: The Origin of Batman's Butler
2019 · 7.9

Constantine
2014 · 7.7

A Touch of Frost
1992 · 7.6

Murphy's Law
2001 · 7.6

Homeland
2011 · 7.6

The New Look
2024 · 7.5

Patrick Melrose
2018 · 7.5

Bad Sisters
2022 · 7.5

Vera
2011 · 7.4

The Ballad of Buster Scruggs
2018 · 7.1

Oasis
2017 · 7.1

RSC Live: The Comedy of Errors
2009 · 7.0

Oasis
2017 · 6.9

Industry
2020 · 6.9

Defiance
2008 · 6.8

Fortitude
2015 · 6.8

Stephen
2021 · 6.8

Nightsleeper
2024 · 6.7

Dalgliesh
2021 · 6.7

Bloodlands
2021 · 6.7

Operation Mincemeat
2022 · 6.5

On Chesil Beach
2018 · 6.1

Bad Sugar
2012 · 6.0

All the Old Knives
2022 · 6.0

Murphy's Stroke
1980 · 5.8

Here Before
2022 · 5.5

Dragonheart 3: The Sorcerer's Curse
2015 · 5.4

Rare Beasts
2021 · 5.4

CHURCHED
— · 0.0

RSC Live: As You Like It
2010 · 0.0
The Gentleman Thief
— · 0.0