 | Mark Wahlberg als Sgt. Tommy Saunders |
 | John Goodman als Commisioner Ed Davis |
 | J.K. Simmons als Sgt. Jeffrey Pugliese |
 | Kevin Bacon als Richard DesLauriers |
 | Michelle Monaghan als Carol Saunders |
 | Alex Wolff als Dzhokhar Tsarnaev |
 | Themo Melikidze als Tamerlan Tsarnaev |
 | Michael Beach als Gov. Deval Patrick |
 | Vincent Curatola als Mayor Thomas Menino |
 | James Colby als Superintendent Billy Evans |
 | Jake Picking als Sean Collier |
 | Melissa Benoist als Katherine Russell |
 | Jimmy O. Yang als Dun Meng |
 | Chris O'Shea als Patrick Downes |
 | Rachel Brosnahan als Jessica Kensky |
 | Khandi Alexander als Veronica |
 | Lana Condor als Li |
 | Dustin Tucker als Steve Woolfenden |
 | Lucas Thor Kelley als Leo Woolfenden |
 | Martine Assaf als Connie Pugliese |
| Cara Leroy O'Connell als Kara |
| Pamela Amicy als Tiesha |
| Brandon Wahlberg als Officer Travis Dixon |
| Kelby Turner Akin als Officer Dic Donohue |
 | Billy Smith als Charlie Collins |
 | Paige MacLean als Lisa Murphy |
 | Adam Trese als John Bradshaw |
 | Hampton Fluker als James Williams |
 | Jay Giannone als Jimmy |
 | Cliff Moylan als Sergeant John MacLellan |
| Curtis J. Bellafiore als Officer Joey Reynolds |
 | Elijah Guo als Dias Kadyrbayev |
| Jin Yang Brancalhao als Aza |
| Brent Saunders als Robel |
 | Dean Neistat als Michael Butler |
 | John Fiore als Michael Thomas |
 | Kathy Harum als Carol's Mom |
 | Erica McDermott als Jimmy's Girlfriend |
 | Peter Berg als Guy Opening MIT Door |
 | John Franchi als Park Pedestrian |
 | Arthur Wahlberg als Uncle Archie |
 | Anthony 'Ace' Thomas als Third Officer at Falcon |
| David Ortiz als David Ortiz |
 | Jay Karales als Marathon Attendee (uncredited) |
 | Anthony Molinari als Waterville Policeman (uncredited) |
 | Katrine Hoyt als Surgical Nurse #2 (uncredited) |
 | Dicky Eklund Jr. als Young Police Officer |
| Kevin Molis als Watertown Police Officer |
 | Colleen Kelly als FBI Analyst #4 (uncredited) |
| Chris Ryerson | Rigging Grip |
| Shawn S. Ryder | Rigging Grip |
| Peter Berg | Director |
| Dorothy Aufiero | Producer |
| Dylan Clark | Producer |
| Mark Wahlberg | Producer |
| Scott Stuber | Producer |
| Peter Berg | Screenplay |
| Matt Cook | Screenplay |
| Joshua Zetumer | Screenplay |
| Michael Radutzky | Producer |
| Stephen Levinson | Producer |
| Hutch Parker | Producer |
| Steve Cooper | Art Direction |
| Kelsey Ettman | Assistant Costume Designer |
| Sean Devereaux | Visual Effects Supervisor |
| Jamie Kelman | Prosthetic Makeup Artist |
| Kelly Cronin | Script Supervisor |
| Aaron Becker | VFX Supervisor |
| Gary A. Hecker | Foley |
| Ronald R. Reiss | Set Decoration |
| Patty Connolly | ADR Voice Casting |
| Dino Parks | Second Unit Director of Photography |
| Brian Drewes | Visual Effects Producer |
| Tami Lane | Key Makeup Artist |
| Dana Pacheco | Key Costumer |
| Wayne Marshall | Rigging Gaffer |
| Jimmy E. Jensen | First Assistant Camera |
| Steven Spady | Visual Effects Editor |
| Piero Mura | Sound Designer |
| Albert Gasser | Sound Effects Editor |
| John Ross | Sound Re-Recording Mixer |
| Julie LeShane | Prosthetic Makeup Artist |
| Matt Cook | Story |
| Sheila Jaffe | Casting |
| Drew Guajardo | Assistant Property Master |
| Aaron Kahl | Casting Associate |
| Matt Kutcher | Special Effects Supervisor |
| Dror Mohar | Supervising Sound Editor |
| Virginia B. Johnson | Costume Design |
| Taryn Walsh | Set Costumer |
| Jennifer Wang | Visual Effects Coordinator |
| Harrison Marks | Visual Effects Producer |
| Michael Keller | Sound Re-Recording Mixer |
| Jill Piwowar | First Assistant Editor |
| Cesha Ventre | Set Costumer |
| Michael J. Broomberg | Foley |
| Jennifer Yoo | Casting Associate |
| David Fernandez | Key Costumer |
| Sally Boldt | Music Editor |
| Jacques Jouffret | Camera Operator |
| Bob E. Krattiger | Gaffer |
| Dustin VonLossberg | Dolly Grip |
| Andy DePung | First Assistant Camera |
| Ashley L. Sykes | Art Department Assistant |
| Theodore Suchecki | Construction Coordinator |
| Stacey Badour | Visual Effects Coordinator |
| Alex Lemke | Visual Effects Supervisor |
| Robert Nederhorst | Visual Effects Supervisor |
| Annie Johnson | Digital Intermediate |
| Tobias A. Schliessler | Director of Photography |
| Paul Flinchbaugh | First Assistant Sound Editor |
| Linda Yeaney | First Assistant Sound Editor |
| Tom Duffield | Production Design |
| April McCoy | Tailor |
| Dylan Goss | Aerial Director of Photography |
| John Garrett | Camera Operator |
| Johnny Villanueva | Makeup Artist |
| Elizabeth Clifford | Wardrobe Supervisor |
| Paul Tamasy | Story |
| Ben Schor | Music Editor |
| Karen Ballard | Still Photographer |
| Ryan Brassington | Visual Effects Editor |
| Lara Lom | Visual Effects Producer |
| Gabriel Fleming | Editor |
| Jesse Goldberg | Gaffer |
| Greg Wimer | First Assistant Camera |
| Linda Luong | Visual Effects Producer |
| Mike Prestwood Smith | Sound Re-Recording Mixer |
| Rob Fitz | Makeup Artist |
| Stefan Sonnenfeld | Digital Intermediate |
| Colby Parker Jr. | Editor |
| Angela Peri | Casting |
| Mike Clifford | Casting Assistant |
| Louis Delavenne | Aerial Coordinator |
| Debbie Pearl | Animal Coordinator |
| Randy Singer | Foley |
| David Raines | Sound Effects Editor |
| Bruce Tanis | Sound Effects Editor |
| Sherryn Smith | Prosthetic Makeup Artist |
| Peter Berg | Story |
| Eric Johnson | Story |
| Kimmie Johnson | Art Department Coordinator |
| Mark Sussman | ADR Voice Casting |
| Jason Ruder | Music Editor |
| Don Libby | CG Supervisor |
| Howard Berger | Makeup Department Head |
| Coy Aune | Camera Operator |
| Michael Nelson | Ultimate Arm Operator |
| Joey Cassaro | Production Assistant |
| Erik Feig | Production Executive |
| Robert Johnston | Second Assistant Accountant |
| Herb Polack | Travel Coordinator |
| Mark Garrigus | Production Assistant |
| Alex L. Worman | Unit Publicist |
| Jennifer Driscoll | Production Secretary |
| Wendy Overly | Dialect Coach |
| Ben Skorstad | Pilot |
| Benjamin Zalusky | Set Production Assistant |
| Stefanie Swanson | Post Production Accountant |
| Abby Mulholland | Production Assistant |
| Billy Concha | Stand In |
| Jodi Purdy-Quinlan | Extras Casting Assistant |
| Timothy DuBois | Additional Production Assistant |
| Tony Scelsi | Production Assistant |
| Christian Torti | Production Assistant |
| Anthony Kanaley | Extras Casting |
| Michael Peavey | Pilot |
| Chelsea Jenney | Production Assistant |
| Clint Porte | Production Assistant |
| John L. Richmond | Production Assistant |
| Chuck Slavin | Stand In |
| Kylie Paul | Production Assistant |
| Kathleen Keller | Production Coordinator |
| Jerry Dwyer Jr. | Extras Casting |
| Josh Cronin | Production Assistant |
| Bradley Grenon | Production Assistant |
| Keith Fluker | Stand In |
| Chauency Reese | Payroll Accountant |
| Tyler Robinson | Production Assistant |
| Adrian M. Mompoint | Stand In |
| M. Ross-Michaels | Production Accountant |
| Nick Austin | Stand In |
| Kayla Cruz | Assistant Production Coordinator |
| Delane Leahy | Production Assistant |
| Devin McDonough | Production Secretary |
| K.C. Roballo | Set Medic |
| Shane Hayes | Dialogue Editor |
| Mike Smith | Second Unit Director |
| Mike Smith | Stunt Coordinator |
| Edward J. Borasch Jr | Property Master |
| Kate Boyer | Stunts |
| Erik Stabenau | Stunts |
| John C. Meier | Stunts |
| Atticus Ross | Original Music Composer |
| Trent Reznor | Original Music Composer |
| Christopher T. Sadler | Second Assistant Director |
| Eric Heffron | First Assistant Director |
| Kevin Scott | Second Unit Director |
| Chris Brewster | Stunts |
| Chris Palermo | Stunts |
| Brett Smrz | Stunts |
| Gregg Smrz | Stunts |
| Glen Yrigoyen | Stunts |
| Alina Andrei | Utility Stunts |
| Matt Berberi | Stunt Double |
| Matt Shadden | Stunt Double |
| Kionte Storey | Stunts |
| Matthew Taylor | Stunts |
| Kage Yami | Stunts |
| Noelle Therese Mulligan | Stunts |
| Casey O'Neill | Stunt Coordinator |
| Ryan Sangster | Stunts |
| Kelly Phelan | Stunts |
| Bethany Levy | Stunts |
| Christopher Leps | Stunts |
| Monique McKellop | Stunts |
| Joe Lambert | Stunts |
| Chuck 'Chaz' Hosack | Stunts |
| Matt Leonard | Stunts |
| Owen Holland | Stunts |
| Adam Hart | Stunts |
| Sean Graham | Stunts |
| Matthew James Kutcher | Stunts |
| Josh Fried | Stunts |
| Brent Fletcher | Stunts |
| Jeremy Gallant | Stunts |
| Peter Epstein | Stunts |
| Korey Fackler | Stunts |
| Tom Elliott | Stunts |
| Jared S. Eddo | Stunts |
| Kirstie Ennis | Stunts |
| Keith Couture | Stunts |
| Mike Dowling | Stunts |
| Chris Carnel | Stunts |
| Alex Chansky | Stunts |
| Craig Baxley Jr | Stunts |
| Matt Baker | Stunts |
| Bobby Anderson | Stunts |
| Casey Adams | Stunts |
