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Brian Geraghty

Originally from Jersey, Brian Geraghty (born Brian Timothy Geraghty) graduated from The Neighborhood Playhouse School of Theatre and then began his professional career in New York City before moving to Los Angeles. He has previously enjoyed being a surf instructor and continues to surf in his free time.

Known For


Cast Credits

Big Sky (2020)
Starring as Ronald Pergman (15 episodes)
The Fugitive (2020)
Starring as Colin Murphy (7 episodes)
Briarpatch (2020)
Starring as Captain Gene Colder (10 episodes)
The Alienist (2018)
Starring as Theodore Roosevelt (10 episodes)
Chicago Med (2015)
Guest starring as Officer Sean Roman (3 episodes)
  • Episode 1x16: Disorder (May 3, 2016)
  • Episode 1x07: Saints (Jan 26, 2016)
  • Episode 1x02: iNO (Nov 24, 2015)
Chicago P.D. (2014)
Starring as Sean Roman (46 episodes)
Guest starring as Sean Roman
Ray Donovan (2013)
Guest starring as Jim Halloran (9 episodes)
Chicago Fire (2012)
Guest starring as Sean Roman (9 episodes)
Boardwalk Empire (2010)
Guest starring as Agent Warren Knox (9 episodes)
True Blood (2008)
Guest starring as Brian Eller (3 episodes)
Law & Order: Special Victims Unit (1999)
Guest starring as Peter Butler
  • Episode 11x11: Quickie (Jan 6, 2010)
Guest starring as Officer Sean Roman
Law & Order (1990)
Guest starring as Phillip Ludwick
  • Episode 9x10: Hate (Jan 6, 1999)
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