Matt Damon Colin
Mark Wahlberg Dignam
Leonardo DiCaprio Billy
Brad Pitt Producer
Vera Farmiga Madolyn
Martin Scorsese Director
Rebecca Love Adult Film Actress (uncredited)
Jack Nicholson Costello
Anthony Anderson Brown
Martin Sheen Queenan
Alec Baldwin Ellerby
Ray Winstone Mr. French
Dorothy Lyman Woman at Bar #1
Brian Haley Detective #2 Tailing Queenan
Joseph P. Reidy Priest w/ Young Colin, Assistant Director
Terry Serpico Detective #3 Tailing Queenan
Janet Paparazzo Stunts
John Farrer Priest at Billy's Funeral
Mark Rolston Delahunt
John Cenatiempo Providence Gangster #2
David O'Hara Fitzy
James Badge Dale Barrigan
Jac Rubenstein Dialogue Editor
G.A. Aguilar Stunt Coordinator, Second Unit Director
G. Mac Brown Executive Producer
Kevin Corrigan Cousin Sean
Brendan Burke Irish Thug (uncredited)
Larry Kaplan Unit Publicist
Carla Raij Location Manager
Emma Tillinger Koskoff Woman with Dog, Associate Producer
J.C. MacKenzie Realtor
Johnny Cicco Crack Addict
Billy Smith Detective #1 Tailing Queenan
Craig 'Radio Man' Castaldo Crack House Denizen
David Fischer Executed Man
Joseph Riccobene Kneecapped Bankrobber
Kristen Dalton Gwen
Kristi Zea Production Design
John Rue Luncheonette Proprietor
Roy Lee Executive Producer
Armen Garo Providence Gangster #1
Thomas Lappin Camera Operator
Audrie Neenan Woman at Bar #2
Brian Smyj Man Glassed in Bar
William Monahan Screenplay
Joy Zapata Hairstylist
Sian Grigg Makeup Artist
Robert Wahlberg Lazio (FBI)
Andrew Lau Other
John Franchi Pedestrian (uncredited)
George B. Colucci Jr. Stunts
Conor Donovan Young Colin
Jim Ford Cadet (uncredited)
Robert Legato Visual Effects Supervisor
Chance Kelly Exam Instructor
Nellie Sciutto Queenan's Secretary
Howard Shore Original Music Composer
Blaise Corrigan Stunts
Kay Georgiou Hairstylist
Sandy Powell Costume Design
Steve Kirshoff Special Effects Coordinator
Doug Davison Executive Producer
Mick O'Rourke Jimmy Bags
Chris Cenatiempo Stunts
Jodi Michelle Pynn Stunts
Joseph Oliveira Officer (uncredited)
Marko Costanzo Foley Artist
Michael Arthur Stunts
Ellen Lewis Casting
Cathy Scorsese Props
Chris Fischer Detective #2 - Colin's Unit
Graham King Producer