To take down South Boston's Irish Mafia, the police send in one of their own to infiltrate the underworld, not realizing the syndicate has done likewise. While an undercover cop curries favor with the mob kingpin, a career criminal rises through the police ranks. But both sides soon discover there's a mole among them.
Cops or criminals. When you’re facing a loaded gun, what’s the difference?
Overview
Director
Screenplay
Top Billed Cast
View allLeonardo DiCaprio
William 'Billy' Costigan, Jr.
Matt Damon
Staff Sgt. Colin Sullivan
Jack Nicholson
Francis 'Frank' Costello
Mark Wahlberg
Staff Sgt. Sean Dignam
Vera Farmiga
Dr. Madolyn Madden
Martin Sheen
Capt. Oliver Charles Queenan
Ray Winstone
Mr. Arnold 'Frenchy' French
Anthony Anderson
Trooper Brown
Alec Baldwin
Capt. George Ellerby