Mark Wahlberg character Sgt. Tommy Saunders
John Goodman character Commisioner Ed Davis
J.K. Simmons character Sgt. Jeffrey Pugliese
Kevin Bacon character Richard DesLauriers
Michelle Monaghan character Carol Saunders
Alex Wolff character Dzhokhar Tsarnaev
Themo Melikidze character Tamerlan Tsarnaev
Michael Beach character Gov. Deval Patrick
Vincent Curatola character Mayor Thomas Menino
James Colby character Superintendent Billy Evans
Jake Picking character Sean Collier
Melissa Benoist character Katherine Russell
Jimmy O. Yang character Dun Meng
Christopher O'Shea character Patrick Downes
Rachel Brosnahan character Jessica Kensky
Khandi Alexander character Veronica
Lana Condor character Li
Dustin Tucker character Steve Woolfenden
Lucas Thor Kelley character Leo Woolfenden
Martine Assaf character Connie Pugliese
Cara Leroy O'Connell character Kara
Pamela Amicy character Tiesha
Brandon Wahlberg character Officer Travis Dixon
Kelby Turner Akin character Officer Dic Donohue
Billy Smith character Charlie Collins
Paige MacLean character Lisa Murphy
Adam Trese character John Bradshaw
Hampton Fluker character James Williams
Jay Giannone character Jimmy
Cliff Moylan character Sergeant John MacLellan
Curtis J. Bellafiore character Officer Joey Reynolds
Elijah Guo character Dias Kadyrbayev
Jin Yang Brancalhao character Aza
Brent Saunders character Robel
Dean Neistat character Michael Butler
John Fiore character Michael Thomas
Kathy Harum character Carol's Mom
Erica McDermott character Jimmy's Girlfriend
Peter Berg character Guy Opening MIT Door
John Franchi character Park Pedestrian
Arthur Wahlberg character Uncle Archie
Anthony 'Ace' Thomas character Third Officer at Falcon
Barack Obama character Himself (archive footage)
David Ortiz character Himself
