Mark Wahlberg as Spenser

Winston Duke as Hawk

Alan Arkin as Henry

Iliza Shlesinger as Cissy Davis

Michael Gaston as Captain Boylan

Bokeem Woodbine as Driscoll

Marc Maron as Wayne Cosgrove

James DuMont as Bentwood

Post Malone as 'Squeeb'

Colleen Camp as Betty

Hope Olaidé Wilson as Letitia

Kip Weeks as Macklin

Brandon Scales as Terrence Graham

Ayana Brown as Federal Agent Burton

Dustin Tucker as Federal Agent Fingle

Josh Cronin as Minimart Clerk

Alfred Briere as Scott Traylor

Rebecca Gibel as Laurie Boylan

Alexandra Vino as Gloria Weisnewski

Patty Ross as Mrs. Weisnewski

Chad Nehemiah Reed-Lopes as Terrence and Letitia's Son

Chaz Jeremiah Reed-Lopes as Terrence and Letitia's Son

Anthony "Ace" Thomas as Lego's Owner

Johnny Alves as Boxing Trainer

Rich Skinner as Billy

Trevor Robertson as 'Skinny'

Donald Cerrone as 'Big Boy'

Christopher Weigel as Hipster

Arthur Wahlberg as Archie

Thomas Rosales Jr. as Marcelo

Stephanie Rodgers as Boylan's Daughter

Miles Walters as Driscoll's Son

Paris Nixon as Harbor Health Club Receptionist

Marilyn Leung as Mimi

Ricardo Pitts-Wiley as Baptist Minister

Bo Cleary as Cissy's Date

Jim Boyd as News Anchor #1

Bianca de la Garza as News Anchor #2

Jenny Johnson as Reporter at Letitia's

Alberto Vasallo III as Crime Scene Reporter

Va Lynda K. Robinson as Field Reporter

Joe Carresi as Vegan Chef

Sam Schechter as Vegan Waitress

Marina Varano as Vegan Diner #1

Kallie Tabor as Vegan Diner #2

Dennis Montgomery III as Piano Player

Mikelyn Roderick as Choir Singer

Andresito Germosen De La Cruz as Van Driver

Eric Weinstein as Truck School Student

Jeffrey Vincent Thompson as Batallion Chief Foley

Josh Brogadir as Newscaster

Kevin McCormick as Detective Mulligan

Leah Procito as Salon Girl

Nicholas Cyr as Driscoll's Buddy

Regis Prograis as Trinitario #1

Jason Armani Martinez as Trinitario #2

Brandon M. Shaw as Trinitario #3

Jason Molina as Trinitario #4

Carlos Escarfullery as Trinitario #5

Carrick O'Quinn as Police Officer #1

Wayne Dalglish as Police Officer #2

Adrian M. Mompoint as Police Officer #3

Sal Mirabella Jr. as Police Officer #4

Dennis Pietrantonio as Police Officer #6

Billy Concha as Officer Billy

Cary 'Big Shug' Guy as Prison Guard #1

Kevin Molis as Prison Guard #2

Pat O'Shea as Prison Guard #3

Lawrence Duran as Construction Worker #1

Mark 'Cowboy' Schotz as Construction Worker #2

Thanhminh Tan Thai as Construction Worker #3

Paul Noonan as Boston Police Officer (uncredited)

Marisa Defranco as Nail Salon Woman (uncredited)

Cassie Ventura as Elise (uncredited)