Robert "Con" O'Neill (born 15 August 1966) is an English actor. He started his acting career at the Everyman Theatre and became primarily known for his performances in musicals. He received critical acclaim and won a Laurence Olivier Award for playing Michael "Mickey" Johnstone in the musical Blood Brothers. Subsequently, he was nominated for a Tony Award and a Drama Desk Award for the same role. He has also appeared in many films and television series.

The Outing
Frank
2022

The Batman
Chief Mackenzie Bock
2022

Vengeance Is Mine
Harry Kane
2021

Stilts
Father
2019

Backstage At Live Aid
Tony
2018

The Pen
John
2018
Isabella
Michael
2018
Mark
Mark
2013

G.B.H.
Patrick
2012
Frank
Fidel
2012
The Send Off
John
2011

Bash Street
Matty Snr
2011

Postcode
Clive Viper
2011

The Kid
Dennis
2010

Margot
Tito
2009

Telstar: The Joe Meek Story
Joe Meek
2008

Learners
Gerry
2007
The Illustrated Mum
Micky
2003

Waking the Dead
Colm Hare · (2 episodes)
2001

Watchmen
Burglar
2001

The Last Seduction II
Troy Fenton
1999

Cider with Rosie
Uncle Ray
1998

Bedrooms and Hallways
Terry
1998

The History of Tom Jones: A Foundling
Captain Blifil · (1 episode)
1997
The Perfect Match
Phil
1995

3 Steps to Heaven
Angel Farnham
1995

Scarborough Ahoy!
Michael
1994
The World of Hammer: Chiller
1994

Wycliffe
Ben Walker · (1 episode)
1994

Heartbeat
Rex Hawkins · (1 episode)
1992

Amongst Barbarians
Ralph
1990

Dancin' Thru the Dark
Peter McGeghan
1990
The Lilac Bus
Tom
1990

Norbert Smith: A Life
Davy Throb
1989

The Way of the Wind
Enoch

Pressure
Marshall Leigh-Mallory

The Penguin
Chief Mackenzie Bock · (2 episodes)
2024

Time Bandits
Sheriff of Nottingham · (1 episode)
2024

Nolly
Jack Barton · (3 episodes)
2023

Without Sin
Roman McKeller · (1 episode)
2022

SAS Rogue Heroes
General Montgomery · (2 episodes)
2022

Our Flag Means Death
Izzy Hands · (18 episodes)
2022

Wild Bill
Ray Gilchrist · (1 episode)
2019

Chernobyl
Viktor Bryukhanov · (5 episodes)
2019

Queens of Mystery
Len Savage · (1 episode)
2019

Urban Myths
Tony · (1 episode)
2017

Class
Huw MacLean · (2 episodes)
2016

Ordinary Lies
Joe · (6 episodes)
2015

Banana
Cliff Costello · (1 episode)
2015

Cucumber
Cliff Costello · (8 episodes)
2015

Happy Valley
Neil Ackroyd · (5 episodes)
2014

Uncle
Gwen's Dad · (1 episode)
2014

Uncle
Val · (15 episodes)
2014

Life of Crime
DCI Ferguson · (3 episodes)
2013

The Bible
Paul · (5 episodes)
2013

Criminal Justice
Ralph Stone · (5 episodes)
2008

Lewis
Dr. Bob Massey · (1 episode)
2007

The Stepfather
Bruce Shapiro · (2 episodes)
2005

Murder City
(1 episode)
2004

Ultimate Force
(1 episode)
2002

In Deep
Terry · (2 episodes)
2001

My Hero
Martin · (1 episode)
2000

Always and Everyone
Kenny Fletcher · (3 episodes)
1999

Trial & Retribution
(2 episodes)
1997

Midsomer Murders
Jim Caxton · (1 episode)
1997

The Riff Raff Element
Jed · (2 episodes)
1994

Pie in the Sky
Ian Lefebvre · (1 episode)
1994

Peak Practice
Nick Gillespie · (1 episode)
1993

Inspector Morse
Paul Matthews · (1 episode)
1987

Casualty
Denis Simpson · (1 episode)
1986

Travelling Man
Peter · (1 episode)
1984

The Bill
(1 episode)
1984

One Summer
(5 episodes)
1983

Brookside
Leggers · (1 episode)
1982

Brookside
Joe Cleary · (1 episode)
1982