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Brian Geraghty

Brian Geraghty

Brian Timothy Geraghty is an American actor, known for his roles in the 2005 film Jarhead, the 2008 film The Hurt Locker, and in the 2012 film Flight, along with his recurring role in the HBO drama series Boardwalk Empire. He appeared as a regular on NBC's Chicago P.D. from 2014 to 2016 and played Theodore Roosevelt in the TV series The Alienist. Since Fall 2020, he has been a main character on the ABC crime drama Big Sky.
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