Keira Knightley Loretta McLaughlin
Ridley Scott Producer
Carrie Coon Jean Cole
Chris Cooper Jack Maclaine
Morgan Spector James McLaughlin
David Dastmalchian Albert DeSalvo
Robert John Burke Eddie Holland
Bill Camp Commissioner McNamara
Alessandro Nivola Detective Conley
Rory Cochrane Detective Deline
Tom Ackerley Producer
Luke Kirby F. Lee Bailey
Greg Vrotsos George Nassar
Peter Gerety Eddie Corsetti
Victor Warren Director
Owen Burke Officer Shanley
Ben Kutchins Director of Photography
Paula Plum Mrs. Quinn
Matt Ruskin Director, Writer
Avy Kaufman Casting
Grace Aiello Antczak Claire
Jennifer Lafleur Nurse Patty
Gary Galone Belmont Detective
Rosemary Howard Helen Blake
Kate Lynch Beverly Samans
Robert Fernandez Sound Re-Recording Mixer
James Wilcox Police Examiner
John Lee Ames Harrison
Danny Connelly Building Super
James Ciccone Detective Linski
David Conley Old Desk Cop
Mike Bash Inmate
Carolyn Pickman Location Casting
Michael Tow JC Kim
Tamara Hickey Ellie
Kevin Jung Foley Recordist
Anne McCabe Editor
Mike Pappa Storyboard Artist
Johnna Lape Makeup Artist
Moira Driscoll Psych. Orderly
Pamela Jayne Morgan Anne Samans
Josh Drennen Sergeant Burke
Liam Anderson Tommy
Ivan Martin Stanley
Kevin J. Walsh Producer
Robert C. Kirk Arthur
Pat Fitz The Killer
Ian Lyons Gordon Nielson
Josey McNamara Producer
Kate Middleton Phyllis
Jimmy LeBlanc Officer Dougan
Frank Ridley Ida's Super
Al Conti Boston PD Detective (uncredited)
Sam Roston Executive Producer
Kate Avallone Lifestyle Editor
Michele Proude Anna Slesers
Trish Seeney Makeup Artist
Anthony Raymond Set Designer
Scotty Anderson Casting Associate
Paul Leonard-Morgan Original Music Composer
Bill Mootos Dr. Grayson
Jake Casper College Kid
Damian Volpe Sound Re-Recording Mixer, Supervising Sound Editor
Sheriden Thomas Nina Nichols
Therese Plaehn Kelly
Ryan Winkles Daniel Marsh
Brian Drewes Visual Effects Supervisor
Arjun Bhasin Costume Design
Filipe Messeder Sound Effects Editor
Michael Malvesti Detective Donovan
Kyra Weeks Emmie
Michael Fottrell Executive Producer