Brian Mahoney was an accomplished actor who appeared in a variety of films throughout his Hollywood career. In the early stages of his acting career, Mahoney landed roles in action flicks like "The Boondock Saints" (2000) with Willem Dafoe and Sean Patrick Flanery. He also appeared in the TV movie "Flashfire" (HBO, 1994-95). He continued to work steadily in film throughout the early 2000s, appearing in the Jamie Foxx thriller "The Kingdom" (2007) and the dramatic adaptation "The Express" (2008) with Dennis Quaid. More recently, he tackled roles in the Sean Patrick Flanery drama sequel "The Boondock Saints II: All Saints Day" (2009), the Jason Biggs comedy sequel "American Reunion" (2012) and the Vin Diesel hit action flick "Furious 7" (2015). Most recently, Mahoney acted in the thriller "The Boy Next Door" (2015) with Jennifer Lopez.