Robert Clohessy

Robert Clohessy (born June 10, 1957) is an American actor known for his roles in various television shows. He gained recognition for portraying Correctional Officer Sean Murphy on the HBO prison drama 'Oz' from seasons 3–6. Additionally, he played Officer Patrick Flaherty on the NBC police procedural 'Hill Street Blues,' Warden Boss James Neary on the HBO crime drama 'Boardwalk Empire' for the first two seasons, and Lieutenant Sid Gormley on the CBS police drama 'Blue Bloods.' Born in the Bronx, New York, Clohessy is the son of a police officer. He has also appeared in daytime dramas like 'All My Children,' 'Boy Meets World,' and 'Guiding Light.'