Sgt. Tommy Saunders

Mark Wahlberg

Acting

Commisioner Ed Davis

John Goodman

Acting

Sgt. Jeffrey Pugliese

J.K. Simmons

Acting

Richard DesLauriers

Kevin Bacon

Acting

Carol Saunders

Michelle Monaghan

Acting

Dzhokhar Tsarnaev

Alex Wolff

Acting

Tamerlan Tsarnaev

Themo Melikidze

Acting

Gov. Deval Patrick

Michael Beach

Acting

Mayor Thomas Menino

Vincent Curatola

Acting

Superintendent Billy Evans

James Colby

Acting

Sean Collier

Jake Picking

Acting

Katherine Russell

Melissa Benoist

Acting

Dun Meng

Jimmy O. Yang

Acting

Patrick Downes

Chris O'Shea

Acting

Jessica Kensky

Rachel Brosnahan

Acting

Veronica

Khandi Alexander

Acting

Li

Lana Condor

Acting

Steve Woolfenden

Dustin Tucker

Acting

Leo Woolfenden

Lucas Thor Kelley

Acting

Connie Pugliese

Martine Assaf

Acting

Kara

Cara Leroy O'Connell

Production

Tiesha

Pamela Amicy

Acting

Officer Travis Dixon

Brandon Wahlberg

Acting

Officer Dic Donohue

Kelby Turner Akin

Acting

Charlie Collins

Billy Smith

Acting

Lisa Murphy

Paige MacLean

Acting

John Bradshaw

Adam Trese

Acting

James Williams

Hampton Fluker

Acting

Jimmy

Jay Giannone

Acting

Sergeant John MacLellan

Cliff Moylan

Acting

Officer Joey Reynolds

Curtis J. Bellafiore

Acting

Dias Kadyrbayev

Elijah Guo

Acting

Aza

Jin Yang Brancalhao

Acting

Robel

Brent Saunders

Acting

Michael Butler

Dean Neistat

Crew

Michael Thomas

John Fiore

Acting

Carol's Mom

Kathy Harum

Acting

Jimmy's Girlfriend

Erica McDermott

Acting

Guy Opening MIT Door

Peter Berg

Directing

Park Pedestrian

John Franchi

Acting

Uncle Archie

Arthur Wahlberg

Acting

Third Officer at Falcon

Anthony "Ace" Thomas

Acting

David Ortiz

David Ortiz

Acting

Marathon Attendee (uncredited)

Jay Karales

Production

Waterville Policeman (uncredited)

Anthony Molinari

Acting

Surgical Nurse #2 (uncredited)

Katrine Hoyt

Acting

Young Police Officer

Dicky Eklund Jr.

Acting

Watertown Police Officer

Kevin Molis

Acting

FBI Analyst #4 (uncredited)

Colleen Kelly

Acting

Dzhokhar's Roommate

Token

Acting

Watertown Officer Franklin Street

Sean Avery

Acting

Tamerlan's Surgeon

Linda Klein

Acting

College Girl Outside of Sean Collier's #1 (uncredited)

Alexandria Tait

Acting