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.
Con O'Neill's screen work to date leans strongly toward Drama and Crime, a consistent thread across his credits so far.
Con O'Neill's most notable role to date came in The Batman (2022), where he played Chief Mackenzie Bock. He also appeared in Chernobyl (2019) as Viktor Bryukhanov. Most recently appeared in The Penguin (2024) as Chief Mackenzie Bock.
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