 | Keanu Reeves als Detective Tom Ludlow |
 | Forest Whitaker als Captain Jack Wander |
 | Chris Evans als Detective Paul Diskant |
 | Hugh Laurie als Captain James Biggs |
 | Naomie Harris als Linda Washington |
 | Cedric the Entertainer als Scribble |
 | Martha Higareda als Grace Garcia |
 | Common als Coates |
 | Angela Sun als Julie Fukashima |
 | Jay Mohr als Sgt. Mike Clady |
 | Amaury Nolasco als Detective Cosmo Santos |
 | John Corbett als Detective Dante Demille |
 | Terry Crews als Detective Terrence Washington |
 | Cle Sloan als Fremont |
 | Game als Grill |
 | Michael Monks als Michael Monks |
 | Kate Clarke als Demille's Girlfriend |
 | Noel Gugliemi als Quicks |
| Michael Monks als Pathologist |
 | Clifton Powell als Sergeant Green |
 | Daryl Gates als The Chief |
 | Kenneth Choi als Boss Kim |
 | Wally Rudolph als Thug Kim |
 | Garret Sato als Toilet Man |
 | Kerry Wong als Union Market Clerk |
 | Aaron McPherson als Union Market Cop #1 |
| Paul Anthony Barreras als Union Market Cop #2 |
| Yonda Davis als Prostitute #1 |
 | Siobhan Parisi als Prostitute #2 |
 | Emilio Rivera als OG Vato |
 | Michael D. Roberts als Older Black Man |
 | Kami Jones als Black Woman |
 | Jernard Burks als Money Shirt |
 | Kevin Benton als Lt. Van Buren |
 | Amy Dudgeon als Assistant D.A. |
 | Genesis Codina als Little Mexican Girl |
 | Michaela Pereira als News Anchor |
 | Jaime FitzSimons als Senior Captain |
 | Joanne Chew als Park Twin #1 |
 | Kel Ann Hsieh als Park Twin #2 |
 | Patrick Gallagher als LAPD Captain |
 | Kirstin Pierce als Clady's Wife |
 | Carlos Amezcua als Co-Anchor |
 | David Ayer als NLR member in County Jail (uncredited) |
 | Candice A. Buenrostro als Troubled teen (uncredited) |
 | Daniel Van Dyke als LAPD Sergeant (uncredited) |
 | Masen Faison als ER Nurse (uncredited) |
| David Ayer | Director |
| Jamie Moss | Screenplay |
| Kurt Wimmer | Screenplay |
| James Ellroy | Screenplay |
| Erwin Stoff | Producer |
| Graeme Revell | Original Music Composer |
| Gabriel Beristain | Director of Photography |
| Jeffrey Ford | Editor |
| Lucas Foster | Producer |
| Alexandra Milchan | Producer |
| Mary Vernieu | Casting |
| Michele Michel | Costume Design |
| Alec Hammond | Production Design |
| Hilton Rosemarin | Set Decoration |
| Francisco X. Pérez | Makeup Department Head |
| Claudia Wick | Costume Supervisor |
| Tad Griffith | Stunts |
| Riley Harper | Stunts |
| Susan Germaine | Hair Department Head |
| Soo-Jin Yoon | Hairstylist |
| Jennifer Bell | Key Hair Stylist |
| Alicia M. Tripi | Key Hair Stylist |
| Michael Germain | Key Makeup Artist |
| Rick Stratton | Tattooist |
| Sara Ghaffar | Art Department Assistant |
| Richard Bloom | Art Department Coordinator |
| Charlie Campbell | Assistant Art Director |
| Chris Langevin | Assistant Property Master |
| Dominick Bruno | Assistant Property Master |
| Mark R. LaPresle | Construction Coordinator |
| Gary B. Krakoff Jr. | Construction Foreman |
| Andrew Campbell | Graphic Designer |
| David Corral | Greensman |
| Daril Alder | Leadman |
| Tom Waisanen | On Set Dresser |
| Gary Tuers | Property Master |
| Caroline Perzan | Set Decoration Buyer |
| Al Hobbs | Set Designer |
| Dameon Daniels | Set Dresser |
| Miguel A. Garcia | Set Dresser |
| Ray Garcia | Set Dresser |
| Tim Caprarelli | Set Dresser |
| Jesse Siono Jr. | Standby Painter |
| Andrew Garcia-Price | Storyboard Artist |
| Steven J. Winslow | Aerial Camera Technician |
| John Trapman | Aerial Director of Photography |
| Lance Dickinson | Assistant Chief Lighting Technician |
| Scott Sprague | Best Boy Electric |
| Andrew Taylor | Best Boy Grip |
| Marcis Cole | "A" Camera Operator |
| Jay Herron | "B" Camera Operator |
| Tom Schnaidt | "B" Camera Operator |
| Marcis Cole | Steadicam Operator |
| Rustie Burris | Camera Production Assistant |
| Joshua Turner | Camera Production Assistant |
| Steven Bernstein | Second Unit Director of Photography |
| Mike Moad | Dolly Grip |
| Stephen M. Foss | Dolly Grip |
| Steve Harvey | Electrician |
| Nate Johnson | Electrician |
| George Lozano Jr. | Electrician |
| Cedric Bonier | Electrician |
| Frankie Martinez | Electrician |
| Allen Harker | Electrician |
| R. Michael Yope | Electrician |
| Craig Grossmueller | First Assistant Camera |
| Erik Emerson | First Assistant Camera |
| Alan Cohen | First Assistant "A" Camera |
| Mariana Sánchez de Antuñano | First Assistant "B" Camera |
| Daniel Page McDonough | First Assistant "B" Camera |
| Danny Eccleston | Gaffer |
| Barry Gross | Gaffer |
| Rod Weaver | Gaffer |
| Miles Gutkin | Grip |
| Bob Leitelt | Key Grip |
| Charles Smith | Key Rigging Grip |
| Glenn E. Moran | Rigging Gaffer |
| William Kent | Rigging Grip |
| Johnny Martinez | Rigging Grip |
| Bill H. Schwocho | Rigging Grip |
| Mark T. Stockwell Sr. | Rigging Grip |
| Eric Guerin | Second Assistant "A" Camera |
| Jeremiah Kent | Second Assistant "B" Camera |
| Merrick Morton | Still Photographer |
| Noah Bishop | Techno Crane Operator |
| V.W. Scheich | Video Assist Operator |
| Brandon Hemmerling | Casting Assistant |
| Lindsay Graham Ahanonu | Casting Associate |
| Yvette Ammon | Costumer |
| Carlos Brown | Costumer |
| Michelle Liu | Costumer |
| Christine Bean | Assistant Costume Designer |
| Roberto Carneiro | Set Costumer |
| Anette Czagany | Set Costumer |
| Alma Magaña | Set Costumer |
| Kanani Wolf | Set Costumer |
| Bob Moore Jr. | Set Costumer |
| Robert E. Moore III | Tailor |
| Cory Fleming | Aerial Coordinator |
| Keii Johnston | Aerial Coordinator |
| Michael Smuda | Craft Service |
| Raymond Bulinski | Craft Service |
| Marc Meaut | Craft Service |
| Joy Ellison | Dialect Coach |
| Bruce Benson | Pilot |
| Rick Shuster | Pilot |
| Diane Collins | Script Supervisor |
| Kelly Leffler | Script Supervisor |
| Liliana M. Molina | Script Supervisor |
| Mark Blaydes | Set Medic |
| Antonio Evans | Set Medic |
| Lorri Bearbower | Studio Teacher |
| Steve Duncan | Transportation Coordinator |
| Tim Sisson | Transportation Captain |
| Kevin Houlihan | Music Coordinator |
| Ashley Revell | Music Editor |
| Roy Prendergast | Music Editor |
| John Houlihan | Music Supervisor |
| Season Kent | Music Supervisor |
| Boris Elkis | Orchestrator |
| Graeme Revell | Orchestrator |
| Mark Curry | Scoring Mixer |
| Shant Jordan | Compositing Supervisor |
| Wayne A. Shepherd | Compositing Supervisor |
| Suzette Barnett | Compositor |
| Matthew Collorafice | Digital Compositor |
| Ante Dekovic | Digital Compositor |
| Jason Zimmerman | Digital Compositor |
| Mark Robben | Digital Compositor |
| Adam Stern | Digital Compositor |
| Pallavi Devabhaktuni | Digital Compositor |
| David Hochstadter | Digital Compositor |
| Danny Braet | Digital Effects Supervisor |
| Danny Torres | Systems Administrators & Support |
| Steve Dellerson | Visual Effects |
| Jeremy Hunt | Visual Effects |
| Thomas F. Ford IV | Visual Effects Producer |
| Les G. Jones | Visual Effects Producer |
| Chris Watts | Visual Effects Supervisor |
| Bruno Van Zeebroeck | Special Effects Coordinator |
| Robert Cole | Special Effects Technician |
| Edward Gettis | Special Effects Technician |
| Richard L. Hill | Special Effects Technician |
| James Lorimer | Special Effects Technician |
| Michael Schorr | Special Effects Technician |
| George Zamora | Special Effects Technician |
| William Paley | Assistant Editor |
| Kiran Pallegadda | Associate Editor |
| Jim Passon | Color Timer |
| April McMorris | Digital Intermediate Producer |
| Christopher J. Maldonado | Editorial Production Assistant |
| Derek Casari | ADR Engineer |
| Eric Thompson | ADR Mixer |
| Robert Ulrich | ADR Supervisor |
| Josephine Nericcio | Assistant Sound Editor |
| David A. Smith | Boom Operator |
| Ross Levy | Cableman |
| John Kwiatkowski | Dialogue Editor |
| Mark Coffey | First Assistant Sound Editor |
| John Sievert | Foley Artist |
| Steve Copley | Foley Mixer |
| Piero Mura | Sound Designer |
| Richard L. Anderson | Sound Editor |
| G.W. Brown | Sound Editor |
| Albert Gasser | Sound Effects Editor |
| Stacey Dodds | Sound Engineer |
| Rodrigo Ortiz-Parraga | Sound Engineer |
| Lori Dovi | Sound Mixer |
| Kevin Dunigan | Sound Recordist |
| Matt Patterson | Sound Recordist |
| Craig Heath | Sound Recordist |
| Elliot Tyson | Sound Re-Recording Mixer |
| James Bolt | Sound Re-Recording Mixer |
| Piero Mura | Supervising Sound Editor |
| Jaime FitzSimons | Technical Advisor |
| Danny Wynands | Stunts |
| Scott Workman | Stunts |
| Jon Valera | Stunts |
| Anthony C. Steere | Stunts |
| Ray Siegle | Stunts |
| Kevin Scott | Stunts |
| Myke Schwartz | Stunts |
| David Schultz | Stunts |
| Michael Runyard | Stunts |
| Debbie Lynn Ross | Stunts |
| R.A. Rondell | Stunt Coordinator |
| Erik Rondell | Stunts |
| Jason Rodriguez | Stunts |
| Eddie Perez | Stunts |
| Chris Palermo | Stunts |
| Efosa Otuomagie | Stunts |
| Crystal Michelle | Stunt Double |
| Oakley Lehman | Stunts |
| Henry Kingi | Stunts |
| Wayne King | Stunts |
| Steve Holladay | Stunts |
| Logan Holladay | Stunts |
| Freddie Hice | Stunts |
| John Hateley | Stunts |
| Thomas Robinson Harper | Stunts |
| James M. Halty | Stunts |
| Mike Gunther | Stunt Double |
| Mark Ginther | Stunts |
| Kevin Foster | Stunts |
| Annie Ellis | Stunts |
| Brian Duffy | Stunts |
| Kevin Derr | Stunts |
| Jeffrey J. Dashnaw | Stunts |
| Clay Cullen | Stunts |
| Liisa Cohen | Stunts |
| Joe Bucaro III | Stunts |
| Troy Brown | Stunts |
| Robert Alonzo | Stunts |
| Kenny Alexander | Stunts |
| Arnon Milchan | Executive Producer |
| Bruce Berman | Executive Producer |
