Mark Wahlberg
— Spenser
Winston Duke
— Hawk
Iliza Shlesinger
— Cissy Davis
James DuMont
— Tracksuit Charlie Bentwood
Bokeem Woodbine
— Driscoll
Marc Maron
— Wayne Cosgrove
Post Malone
— Squeeb
Michael Gaston
— Captain John Boylan
Colleen Camp
— Mara
Hope Olaidé Wilson
— Letitia Graham
Kip Weeks
— Macklin
Rebecca Gibel
— Laurie Boylan
Cary 'Big Shug' Guy
— W. Lintz
Donald Cerrone
— Big Boy
Brandon Scales
— Terrence Graham