Brian Timothy Geraghty is an American actor, known for his role in the Academy Awardwinning film The Hurt Locker, for his role alongside Denzel Washington in the 2012 film Flight and for his recurring role in the acclaimed HBO drama series Boardwalk Empire. He is a regular on NBCs Chicago P.D..
Geraghty was born in Toms River, New Jersey, and is of Irish descent. He graduated from Toms River High School East in 1993 and then the Neighborhood Playhouse School of Theatre before beginning his professional career in New York City he later moved to Los Angeles.
Source: Wikipedia