Matt Damon Colin
Vera Farmiga Madolyn
Brad Pitt Producer
Leonardo DiCaprio Billy
Mark Wahlberg Dignam
Martin Scorsese Director
Alec Baldwin Ellerby
Rebecca Love Adult Film Actress (uncredited)
Jack Nicholson Costello
Anthony Anderson Brown
Martin Sheen Queenan
Ray Winstone Mr. French
Dorothy Lyman Woman at Bar #1
Brian Haley Detective #2 Tailing Queenan
Terry Serpico Detective #3 Tailing Queenan
Janet Paparazzo Stunts
George B. Colucci Jr. Stunts
John Farrer Priest at Billy's Funeral
James Badge Dale Barrigan
David O'Hara Fitzy
Kevin Corrigan Cousin Sean
G. Mac Brown Executive Producer
Billy Smith Detective #1 Tailing Queenan
John Cenatiempo Providence Gangster #2
Mark Rolston Delahunt
Doug Davison Executive Producer
Brendan Burke Irish Thug (uncredited)
J.C. MacKenzie Realtor
Johnny Cicco Crack Addict
Thelma Schoonmaker Editor
Roy Lee Executive Producer
John Rue Luncheonette Proprietor
Armen Garo Providence Gangster #1
Audrie Neenan Woman at Bar #2
Chance Kelly Exam Instructor
William Monahan Screenplay
Robert Wahlberg Lazio (FBI)
Andrew Lau Other
Kristi Zea Production Design
Kristen Dalton Gwen
John Franchi Pedestrian (uncredited)
Joseph P. Reidy Priest w/ Young Colin, Assistant Director
Conor Donovan Young Colin
Allan Zaleski Sound Effects Editor
Jim Ford Cadet (uncredited)
Robert Legato Visual Effects Supervisor
Joseph Riccobene Kneecapped Bankrobber
Nellie Sciutto Queenan's Secretary
Howard Shore Original Music Composer
Sandy Powell Costume Design
Chris Cenatiempo Stunts
Joseph Oliveira Officer (uncredited)
Michael Arthur Stunts
Larry Mitchell Younger Priest
Mick O'Rourke Jimmy Bags
Cathy Scorsese Props
Chris Fischer Detective #2 - Colin's Unit
Ellen Lewis Casting
Andrew Rowlands Camera Operator
David Ebner Visual Effects Supervisor
Marissa Littlefield ADR Supervisor
Kathryn Blondell Hairstylist
Craig 'Radio Man' Castaldo Crack House Denizen
Tim Monich Dialect Coach
Donald Mowat Makeup Artist
Graham King Producer
Bruce MacCallum Camera Operator
Jay Giannone Detective #4 Tailing Queenan
Joy Zapata Hairstylist
Eric Weinstein Actor's Assistant
Francesca Scorsese Little Girl at Airport
Jill Brown Executed Woman