Billy

Leonardo DiCaprio

Acting

Colin

Matt Damon

Acting

Costello

Jack Nicholson

Acting

Dignam

Mark Wahlberg

Acting

Queenan

Martin Sheen

Acting

Mr. French

Ray Winstone

Acting

Madolyn

Vera Farmiga

Acting

Brown

Anthony Anderson

Acting

Ellerby

Alec Baldwin

Acting

Cousin Sean

Kevin Corrigan

Acting

Barrigan

James Badge Dale

Acting

Fitzy

David O'Hara

Acting

Delahunt

Mark Rolston

Acting

Lazio (FBI)

Robert Wahlberg

Acting

Gwen

Kristen Dalton

Acting

Govenor

Thomas B. Duffy

Acting

Uncle Edward

Richard Hughes

Acting

Realtor

J.C. MacKenzie

Acting

Billy's Aunt

Mary Klug

Acting

Mrs. Kennefick

Peg Holzemer

Acting

Triad Boss

Robert 'Toshi' Kar Yuen Chan

Acting

Pakistani Proprietor

Gurdeep Singh

Acting

Providence Gangster #1

Armen Garo

Acting

Providence Gangster #2

John Cenatiempo

Crew

Kneecapped Bankrobber

Joseph Riccobene

Acting

Detective #1 Tailing Queenan

Billy Smith

Acting

Translator

Lyman Chen

Acting

Detective #1 - Colin's Unit

Kevin P. McCarthy

Acting

Detective #2 - Colin's Unit

Chris Fischer

Acting

Man Glassed in Bar

Brian Smyj

Crew

Older Priest

William Severs

Acting

Younger Priest

Larry Mitchell

Acting

Police Camera Tech

Anthony Estrella

Acting

Police Cell Phone Tech

Andrew Breving

Acting

Darlene the Secretary

Tracey Paleo

Acting

Man Killed by French

Douglas Crosby

Crew

Woman at Bar #1

Dorothy Lyman

Acting

Woman at Bar #2

Audrie Neenan

Acting

News Anchor

Frank Mallicoat

Acting

Billy's Mother

Paula DeMers

Acting

Young Colin

Conor Donovan

Acting

Carmen

Amanda Lynch

Acting

Woman at Opera

Sallie Toussaint

Acting

Bookie Harassed by French

Patrick Coppola

Production

Jimmy Bags

Mick O'Rourke

Crew

Sister Mary Theresa

Deborah Carlson

Acting

Queenan's Secretary

Nellie Sciutto

Acting

Other Prisoner

Peter Welch

Acting

Chinese Government Man

Henry Yuk

Acting

Costello's Crew #1

Dennis Lynch

Acting

Costello's Crew #2

Michael Byron

Acting

Costello's Crew #3

William Lee

Acting

Luncheonette Proprietor

John Rue

Acting

Man in Costello's Bar

Peter Crafts

Acting

Priest w/ Young Colin

Joseph P. Reidy

Directing

Priest at Billy's Funeral

John Farrer

Acting

Jimmy Pappas

Paris Karounos

Acting

Detective #2 Tailing Queenan

Brian Haley

Acting

Detective #3 Tailing Queenan

Terry Serpico

Acting

Detective #4 Tailing Queenan

Jay Giannone

Acting

Lynn Detective

John Polce

Crew

Drill Instructor #2 (voice)

Bo Cleary

Acting

Gang Member with Mr. French

David Conley

Acting

Chinese Delivery Man

Victor Chan

Crew

Executed Woman

Jill Brown

Crew

French's Wife

Sarah Fearon

Acting

Woman Doctor

Denece Ryland

Acting

Crack House Cop #1

Daniel F. Risteen, Jr.

Acting

Crack House Cop #2

Francis P. Hughes

Acting

Crack Addict

Johnny Cicco

Acting

Exam Instructor

Chance Kelly

Acting

Bartender at Brasserie

Shay Duffin

Acting

Bookie in Costello's Bar

John McConnell

Acting

State Trooper #1

Kenneth Stoddard

Acting

State Trooper #2

Jeffrey Winter

Acting

New Guy

Paddy Curran

Acting

New Guy

Mark Philip Patrick

Acting

Executed Man

David Fischer

Directing

Waiter in Alley

Walter Y.F. Wong

Acting

Waiter in Alley

Tony M. Yee

Acting

Little Girl at Airport

Francesca Scorsese

Acting

Young Man at Airport

Alex Morris

Acting

Woman with Dog

Emma Tillinger Koskoff

Production

Crack House Denizen

Craig 'Radio Man' Castaldo

Acting

Triad (uncredited)

Takumi Bando

Acting

Reporter (uncredited)

Eric Bruno Borgman

Acting

Irish Thug (uncredited)

Brendan Burke

Acting

Gang Member (uncredited)

Chris Chinn

Acting

Crime Scene Unit (uncredited)

Jeffrey Corazzini

Acting

Cadet (uncredited)

Jim Ford

Acting

Woman Office Worker (uncredited)

Trudi Goodman

Acting

Academy Pistol Coach (uncredited)

Steve Lord

Acting

EMT (uncredited)

Jack McCullough

Acting

Reporter (uncredited)

Osmani Rodriguez

Acting

Academy Firearms Instructor (uncredited)

Lawrence Cameron Steele

Acting

Rugby Fan (uncredited)

Conor Timmis

Acting

Officer (uncredited)

Joseph Oliveira

Acting

Southie Teen / Soccer Player (uncredited)

Adam Masnyk

Acting

Pedestrian (uncredited)

John Franchi

Acting

Subway Passenger (uncredited)

Paul McGillicuddy

Acting

MA State Police Detective

Kim Carrell

Acting

Adult Film Actress (uncredited)

Rebecca Love

Acting