 | Mark Ruffalo als Michael Rezendes |
 | Michael Keaton als Walter 'Robby' Robinson |
 | Rachel McAdams als Sacha Pfeiffer |
 | Liev Schreiber als Marty Baron |
 | John Slattery als Ben Bradlee Jr. |
 | Brian d'Arcy James als Matt Carroll |
 | Stanley Tucci als Mitchell Garabedian |
 | Elena Wohl als Barbara |
 | Gene Amoroso als Steve Kurkjian |
 | Doug Murray als Peter Canellos |
 | Sharon McFarlane als Helen Donovan |
 | Jamey Sheridan als Jim Sullivan |
 | Neal Huff als Phil Saviano |
 | Billy Crudup als Eric Macleish |
 | Robert B. Kennedy als Court Clerk Mark |
 | Duane Murray als Hansi Kalkofen |
 | Brian Chamberlain als Paul Burke |
 | Michael Cyril Creighton als Joe Crowley |
 | Paul Guilfoyle als Peter Conley |
 | Michael Countryman als Richard Gilman |
 | Tim Whalen als Young Cop |
 | Martin Roach als Cop in Coffee Shop |
 | Brad Borbridge als Sports Editor |
| Don Allison als Bishop |
 | Patty Ross als Linda |
 | Paloma Nuñez als Garabedian's Receptionist |
 | Robert Clarke als Judge Volterra |
 | Gary Galone als Jack Dunn |
 | David Fraser als Jon Albano |
 | Paulette Sinclair als Receptionist at Judge's Chambers |
 | Laurie Heineman als Judge Sweeney |
 | Elena Juatco als Guest List Woman |
| Nancy Villone als Maryetta Dussourd |
 | Wendy Merry als Female Editor |
 | Siobhan Murphy als Intern |
 | Eileen Padua als Sacha's Grandmother |
 | Darrin Baker als Middle Age Priest at St. Peter's |
| Brett Cramp als Middle Aged Man |
 | Joe Stapleton als Older Cop |
| Maureen Keiller als Eileen McNamara |
 | Jimmy LeBlanc als Patrick McSorley |
 | Tim Progosh als Principal Bill Kemeza |
| Neion George als Waiter at Gala |
 | Laurie Murdoch als Wilson Rogers |
 | Zarrin Darnell-Martin als Intern Wanda |
 | Krista Morin als Young Reporter |
 | Paula Barrett als Jim's Wife |
 | Mairtin O'Carrigan als Stewart |
 | Rob deLeeuw als Herald Reporter Quimby |
 | Nancy E. Carroll als Jane Paquin |
 | Anthony Paolucci als Kevin |
 | Michele Proude als Lisa Tuite |
| Richard O'Rourke als Ronald Paquin |
 | Len Cariou als Cardinal Law |
 | Dennis Lynch als Clerk O'Brian |
 | Stefanie Drummond als Sheila |
| Mark McGrinder als Weeping Man |
 | Richard Fitzpatrick als Rectory Priest |
 | Tom Driscoll als Disgruntled Man |
| Jeffrey Samai als Library Security |
 | Moira Driscoll als Woman Interviewee |
 | Forrest Weber als Angry Man |
| Doreen Spencer als Older Southie Woman |
 | Janet Pinnick als Receptionist |
| Shannon McDonough als Receptionist |
| Shannon Ruth als Girl at Garabedian's |
| Daniel Ruth als Boy at Garabedian's |
 | Jennifer Ruth als Mother at Garabedian's |
 | Timothy Mooney als Bad Priest |
 | Bruce-Robert Serafin als Boston Globe Security Guard |
 | Donna Sue Jahier als Angry Man's Sister |
| Edward Brickley als Red Sox Announcer (voice) |
 | Richard Jenkins als Richard Sipe (voice) (uncredited) |
 | Elena Khan als Boston Reporter (uncredited) |
| Teresa Wilson als Maureen (uncredited) |
| Amy Whalen als Pedestrian (uncredited) |
 | John Franchi als Pedestrian (uncredited) |
| Peter Lewis Walsh als Red Sox Fan (uncredited) |
 | Lance Norris als Driver (uncredited) |
| Harold Rudolph als Lawyer (uncredited) |
 | Colleen Kelly als Librarian (uncredited) |
| Robyn Rosenberg | Costume Supervisor |
| Tom McCarthy | Writer |
| Tom McCarthy | Director |
| Masanobu Takayanagi | Director of Photography |
| Josh Singer | Writer |
| Tom McArdle | Editor |
| Bard Dorros | Executive Producer |
| Michael Bederman | Executive Producer |
| Michael Sugar | Producer |
| Jonathan King | Executive Producer |
| Josh Singer | Executive Producer |
| Xavier Marchand | Executive Producer |
| Pierre Omidyar | Executive Producer |
| Nicole Rocklin | Producer |
| Jeff Skoll | Executive Producer |
| Stephen H. Carter | Production Design |
| Steve Golin | Producer |
| Blye Pagon Faust | Producer |
| Howard Shore | Original Music Composer |
| Tom Ortenberg | Executive Producer |
| Wendy Chuck | Costume Design |
| Peter Lawson | Executive Producer |
| Youtchi von Lintel | Co-Producer |
| David Mizner | Associate Producer |
| Kate Churchill | Co-Producer |
| Daryl Richardson | Rigging Grip |
| Neishaw Ali | Visual Effects Producer |
| Mario Cacioppo | Makeup Artist |
| Gilles Corbeil | Steadicam Operator |
| Jason Dodds | Rigging Gaffer |
| Mike Barber | Visual Effects Editor |
| Marko Costanzo | Foley |
| Nichole Pleau | Makeup Artist |
| Henry Tirl | Camera Operator |
| Kerry Hayes | Still Photographer |
| Patricia Keighran | Makeup Artist |
| Matt Bouldry | Casting Associate |
| Taryn Walsh | Set Costumer |
| Frank Kern | Foley |
| James R. Mitchell | Rigging Gaffer |
| Brenda McNally | Key Hair Stylist |
| John Buchan | Casting |
| Kathleen Meade | Costume Supervisor |
| Dusty Reeves | Art Department Coordinator |
| Joey Montenarello | Casting Associate |
| Patrick Stepien | First Assistant Camera |
| Morris Flam | Gaffer |
| Mary Ramos | Music Supervisor |
| Karola Dirnberger | Hair Department Head |
| Kelly Shanks | Hairstylist |
| Renee Fontana | Assistant Costume Designer |
| Christa Tazzeo | Visual Effects Producer |
| Colin Davies | Visual Effects Supervisor |
| Paul Hsu | Sound Designer |
| Jordan Samuel | Makeup Department Head |
| Kerry Barden | Casting |
| Jenna Dayton | Script Supervisor |
| Joseph Micomonaco | First Assistant Camera |
| Chad Birmingham | Music Editor |
| Philippe Majdalani | Digital Intermediate |
| Greg Wimer | First Assistant Camera |
| Seacia Pavao | Still Photographer |
| Kayla Cabral | Visual Effects Coordinator |
| Shane Vieau | Set Decoration |
| Jennifer Dunnington | Music Editor |
| Adam Richards | Casting Associate |
| Maura Smith | Casting Associate |
| Virginia B. Johnson | Costume Supervisor |
| Tom Starnes | Gaffer |
| Brandon Terry | Visual Effects Editor |
| Vanessa Knoll | Set Decoration |
| Michaela Cheyne | Art Direction |
| Cathy Shibley | Key Hair Stylist |
| Jason Knight | Casting |
| Paul Schnee | Casting |
| Dug Rotstein | Script Supervisor |
| Ahmed Shehata | CG Supervisor |
| Walter Gasparovic | First Assistant Director |
| Heather Gross | Sound Effects Editor |
| Jessica Drake | Dialect Coach |
| Don McQueen | Set Dresser |
| Mike Duffy | Visual Effects Supervisor |
| Branko Racki | Stunt Coordinator |
| Christopher Geggie | Property Master |
| Nathan Alexander Kirk | Set Dresser |
| Edward Hanrahan | Visual Effects Coordinator |
| Marissa Littlefield | ADR Editor |
| William Cheng | Set Designer |
| John MacNeil | Set Designer |
| Elspeth Cassar | Production Coordinator |
| Toni Wong | Set Dresser |
| Bobby Beckles | Stunt Coordinator |
| Stephen Gabis | Dialect Coach |
| Karl Denniston Brown | Set Dresser |
| Jeffrey Lee Gibson | Stunt Coordinator |
| Jeff Poulis | Set Dresser |
| Andrew Pang | First Assistant Editor |
| Branka Mrkic | Dialogue Editor |
| Shawnna Thibodeau | Stunt Driver |
