Robert "Con" O'Neill (born 15 August 1966) is an English actor. He was nominated for a Tony Award for Best Actor in a Musical and a Drama Desk Award for Outstanding Actor in a Musical for playing Michael "Mickey" Johnstone in the musical "Blood Brothers". He is known for his role as Viktor Bryukhanov in the mini-series "Chernobyl". O'Neill was also in the 2022 DC Comics movie "The Batman" as a police chief.