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Leonardo DiCaprio as William "Billy" Costigan, Jr. |
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Matt Damon as Staff Sgt. Colin Sullivan |
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Jack Nicholson as Francis "Frank" Costello |
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Mark Wahlberg as Staff Sgt. Sean Dignam |
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Martin Sheen as Capt. Oliver Charles Queenan |
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Ray Winstone as Arnold "Frenchy" French |
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Vera Farmiga as Dr. Madolyn Madden |
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Anthony Anderson as Trooper Brown |
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Alec Baldwin as Capt. George Ellerby |
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Kevin Corrigan as Cousin Sean |
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James Badge Dale as Barrigan |
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David O'Hara as Fitzy |
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Robert Wahlberg as Lazio |
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Kristen Dalton as Gwen |
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Thomas B. Duffy as Govenor |
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Richard Hughes as Uncle Edward |
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Chance Kelly as Exam Instructor |
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Larry Mitchell as Younger Priest |
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Mark Rolston as Delahunt |
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J.C. MacKenzie as Realtor |
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Mary Klug as Billy's Aunt |
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Robert 'Toshi' Kar Yuen Chan as Triad Boss |
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Gurdeep Singh as Pakistani Proprietor |
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Armen Garo as Providence Gangster #1 |
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John Cenatiempo as Providence Gangster #2 |
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Billy Smith as Detective #1 Tailing Queenan |
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Brian Smyj as Man Glassed in Bar |
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William Severs as Older Priest |
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Douglas Crosby as Man Killed by French |
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Dorothy Lyman as Woman at Bar #1 |
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Audrie Neenan as Woman at Bar #2 |
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Conor Donovan as Young Colin |
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Patrick Coppola as Bookie Harassed by French |
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Mick O'Rourke as Jimmy Bags |
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Nellie Sciutto as Queenan's Secretary |
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Henry Yuk as Chinese Government Man |
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John Rue as Luncheonette Proprietor |
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Joseph P. Reidy as Priest with Young Colin |
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John Farrer as Priest at Billy's Funeral |
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Brian Haley as Detective #2 Tailing Queenan |
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Terry Serpico as Detective #3 Tailing Queenan |
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Jay Giannone as Detective #4 Tailing Queenan |
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David Conley as Gang Member with Mr. French |
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Jill Brown as Executed Woman |
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Tom Kemp as Billy Costigan, Sr. (credit only) |
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Joseph Riccobene as Kneecapped Bankrobber |
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Johnny Cicco as Crack Addict |
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Shay Duffin as Bartender at Brasserie |
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David Fischer as Executed Man |
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Emma Tillinger Koskoff as Woman with Dog |
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Craig Castaldo as Crack House Denizen |
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James P. Anderson as Boston Police Dignitary (uncredited) |
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Takumi Bando as Triad (uncredited) |
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Eric Bruno Borgman as Reporter (uncredited) |
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David Boston as Boston Police Chief (uncredited) |
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Brendan Burke as Irish Thug (uncredited) |
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Chris Chinn as Gang Member (uncredited) |
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Jeffrey Corazzini as Crime Scene Unit (uncredited) |
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Jim Ford as Cadet (uncredited) |
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Trudi Goodman as Woman Office Worker (uncredited) |
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Steve Lord as Academy Pistol Coach (uncredited) |
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Jack McCullough as EMT (uncredited) |
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Osmani Rodriguez as Reporter (uncredited) |
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Lawrence Cameron Steele as Academy Firearms Instructor (uncredited) |
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Stream as Shopper in China Town (uncredited) |
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Conor Timmis as Rugby Fan (uncredited) |
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Joseph Oliveira as Officer (uncredited) |
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Mark Falvo as Reporter (uncredited) |
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Adam Masnyk as Southie Teen / Soccer Player (uncredited) |
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Shawn Fogarty as Pedestrian / Businessman (uncredited) |
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John Franchi as Pedestrian (uncredited) |
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Paul McGillicuddy as Subway Passenger (uncredited) |
