 | Russell Crowe als Wendell "Bud" White |
 | Guy Pearce als Edmund "Ed" Exley |
 | Kevin Spacey als Jack Vincennes |
 | Kim Basinger als Lynn Bracken |
 | Danny DeVito als Sid Hudgens |
 | James Cromwell als Dudley Smith |
 | David Strathairn als Pierce Patchett |
 | Ron Rifkin als D.A. Ellis Loew |
 | Matt McCoy als "Badge of Honor" Star Brett Chase |
 | Paul Guilfoyle als Mickey Cohen |
 | Paolo Seganti als Johnny Stompanato |
 | Elisabeth Granli als Mickey Cohen's Mambo Partner |
 | Sandra Taylor als Mickey Cohen's Mambo Partner |
 | Steve Rankin als Officer Arresting Mickey Cohen |
 | Graham Beckel als Dick Stensland |
 | Allan Graf als Wife Beater |
 | Precious Chong als Wife |
 | Symba als Jack's Dancing Partner |
 | Bob Clendenin als Reporter at Hollywood Station |
 | Lennie Loftin als Photographer at Hollywood Station |
 | Will Zahrn als Liquor Store Owner |
 | Amber Smith als Susan Lefferts |
 | Darrell Sandeen als Buzz Meeks |
 | Michael Warwick als Sid's Assistant |
 | Simon Baker als Matt Reynolds |
 | Shawnee Free Jones als Tammy Jordan |
| Matthew Allen Bretz als Officer Escorting Mexicans |
 | Thomas Rosales Jr. als First Mexican |
 | Shane Dixon als Officer / Detective at Hollywood Station |
 | Norman Howell als Officer / Detective at Hollywood Station |
 | Brian Lally als Officer / Detective at Hollywood Station |
| Don Pulford als Officer / Detective at Hollywood Station |
| Chris Short als Officer / Detective at Hollywood Station |
 | John Mahon als Police Chief |
 | Tomas Arana als Breuning - Dudley's Guy |
 | Michael McCleery als Carlisle - Dudley's Guy |
| George Yager als Gangster at Victory Motel |
 | Jack Conley als Vice Captain |
| Ginger Slaughter als Secretary in Vice |
 | Jack Knight als Detective at Detective Bureau |
| John H. Evans als Patrolman at Nite Owl Cafe |
 | Gene Wolande als Forensic Chief |
| Brian Bossetta als Forensic Officer |
 | Michael Chieffo als Coroner |
 | Gwenda Deacon als Mrs. Lefferts |
 | T.J. Kennedy als Bud's Rejected Partner |
 | Ingo Neuhaus als Jack's Rejected Partner |
| Robert Harrison als Pierce Patchett’s Bodyguard |
 | Jim Metzler als City Councilman |
 | Robert Barry Fleming als Boxer |
 | Jeremiah Birkett als Ray Collins - Nite Owl Suspect |
 | Salim Grant als Louis Fontaine - Nite Owl Suspect |
| Karr Washington als Ty Jones - Nite Owl Suspect |
 | Noel Evangelisti als Stenographer |
 | Marisol Padilla Sánchez als Inez Soto - Rape Victim |
| Jeff Sanders als Sylvester Fitch |
 | Steven Lambert als Roland Navarette |
 | Jordan Marder als Officer at Detective Bureau |
 | Gregory White als Mayor |
| April Breneman als Look-Alike Dancer |
| Lisa Worthy als Look-Alike Dancer |
| Beverly Sharpe als Witness on Badge of Honor |
| Colin Mitchell als Reporter at Hospital |
 | John Slade als Photographer at Hospital |
 | Brenda Bakke als Lana Turner |
| Kevin Maloney als Frolic Room Bartender |
 | Patrice Walters als Police File Clerk |
 | Rebecca Klingler als Police File Clerk |
 | Irene Roseen als D.A. Ellis Loew's Secretary |
| Scott Eberlein als West Hollywood Sheriff's Deputy |
 | David St. James als Detective at Hush-Hush Office |
 | Bodie Newcomb als Officer at Hush-Hush Office |
 | Jeff Austin als Detective |
| Robert Foster als Detective |
| Kevin Patrick Kelly als Detective |
| Henry Marder als Detective |
| Monty McKee als Detective |
| Henry Meyers als Detective |
| Michael Ossmann als Detective |
| Dick Stilwell als Detective |
| Jess Thomas als Detective |
| Robert Thompson als Detective |
 | Jody Wood als Detective |
 | Jimmy Ortega als Second Mexican (uncredited) |
 | Nectar Rose als Marilyn Monroe (uncredited) |
| Rocco Salata als Uniformed Patrol Officer (uncredited) |
 | Dell Yount als Court Bailiff (uncredited) |
| Scott McKinley als Cop (uncredited) |
 | Gilbert Rosales als Third Mexican (uncredited) |
 | J.P. Romano als Deuce Perkins (uncredited) |
 | Chris Palermo als Anthony Trombino (uncredited) |
 | April Audia als Mayor's Wife (uncredited) |
| Priscilla Cory als Brunette Police Woman (uncredited) |
 | Fred Lerner als Dudley's Guy with Shotgun (uncredited) |
| Anne Zogby als Movie Star (uncredited) |
| William Arnold | Art Direction |
| Jay Hart | Set Decoration |
| Curtis Hanson | Producer |
| Curtis Hanson | Screenplay |
| Brian Helgeland | Screenplay |
| Dante Spinotti | Director of Photography |
| Michael G. Nathanson | Producer |
| Jerry Goldsmith | Original Music Composer |
| Ruth Myers | Costume Design |
| Curtis Hanson | Director |
| Peter Honess | Editor |
| Mali Finn | Casting |
| Arnon Milchan | Producer |
| Jeannine Oppewall | Production Design |
| James Ellroy | Novel |
| Anthony G. Schmidt | Stunts |
| J. Michael Muro | Steadicam Operator |
| Merrick Morton | Still Photographer |
| Peter Sorel | Still Photographer |
| Brian Helgeland | Co-Producer |
| Dan Kolsrud | Executive Producer |
| David L. Wolper | Executive Producer |
| Jeff Imada | Stunt Coordinator |
| Richard Stutsman | Special Effects Coordinator |
| Rick Avery | Stunts |
| Lance Anderson | Makeup Artist |
| Linda Montanti | First Assistant Director |
| Connie Papineau | Script Supervisor |
| Eric Rylander | Special Effects Coordinator |
| Sharron Reynolds-Enriquez | Script Supervisor |
| Janis Clark | Key Hair Stylist |
| Fred Fein | Stand In |
| Jessica Drake | Dialect Coach |
| Arthur Morton | Orchestrator |
| Marsha Bozeman | Set Costumer |
| Randy Berrett | Grip |
| Kenneth Hunter | Location Manager |
| John Panzarella | Location Manager |
| L. Dean Jones Jr. | Unit Production Manager |
| Emily Schweber | Casting Associate |
| Michael Trent | Assistant Editor |
| Louisa Bonnie | Set Designer |
| Steven Melton | Property Master |
| Corwin A. Bibb | Electrician |
| Scott M. Robinson | Key Grip |
| Keith Dillin | Transportation Coordinator |
| Chuck Brooks | Greensman |
| Gary Jay | Camera Operator |
| Dion Mitchell | Utility Stunts |
| Kenneth Hall | Music Editor |
| Mychal D. Smith | Boom Operator |
| John Leveque | Supervising Sound Effects Editor |
| Duane Manwiller | First Assistant Camera |
| Thell Reed | Armorer |
| Pete Bianco | Transportation Captain |
| Thom 'Coach' Ehle | Dolby Consultant |
| John Cales | Propmaker |
| John Baumhauer | Set Production Assistant |
| Kim Bodner | Production Accountant |
| Kirk Francis | Production Sound Mixer |
| Javier Carrillo | Construction Foreman |
| Peter Donen | Visual Effects Supervisor |
| Peter Savic | Hairstylist |
| Dave Amberik | Driver |
| Beth Jochem Besterveld | First Assistant Editor |
| Bruce Botnick | Scoring Mixer |
| Terry Rodman | Sound Designer |
| Dave DeGaetano | Construction Coordinator |
| Carolyn Hagan | Production Office Coordinator |
| Mark Burnett | Video Assist Operator |
| Joe Divitale | Sound Effects Editor |
| David Guilbeau | Craft Service |
| Bonnie Daniels | Production Controller |
| John Bush | Transportation Co-Captain |
| Steven Gerrior | Assistant Sound Editor |
| Bob Beher | Foley Editor |
| Lisa Lovaas | Costume Supervisor |
| Eric Yount | Carpenter |
| Warren Smith | Production Supervisor |
| Moira Gill | Art Department Coordinator |
| John Hinkle | Standby Painter |
| Bella Noubarian | Seamstress |
| Michael Battaglia | Unit Publicist |
| Rick Broderman | Painter |
| Robert Lamkin | Chef |
| David Orr | Color Timer |
| Donald L. Warner Jr. | Dialogue Editor |
| Tami Treadwell | ADR Recordist |
| Kimberly Lowe Voigt | Dialogue Editor |
| Andrea Horta | ADR Editor |
| Robert Deschaine | ADR Mixer |
| Hilda Hodges | Foley Artist |
| Steve Mann | Sound Effects Editor |
| Andy Nelson | Sound Re-Recording Mixer |
| Glenn Hoskinson | Sound Effects Editor |
| Charleen Richards-Steeves | ADR Mixer |
| Becky Sullivan | Supervising ADR Editor |
| Cathie Speakman | Dialogue Editor |
| Gordon Ecker | Sound Effects Editor |
| John Roesch | Foley Artist |
| Denise Horta | ADR Editor |
| Mildred Iatrou | Dialogue Editor |
| Anna Behlmer | Sound Re-Recording Mixer |
| Gus Le Pre | Hair Assistant |
| Heather Kritzer | Second Second Assistant Director |
| G. Roger Abell | Swing |
| Jerry Goldsmith | Conductor |
| Al DeGaetano | Construction Buyer |
| Pablo Ferro | Title Designer |
| Alberto S. Ramos | Dolly Grip |
| Al Eisenmann | Assistant Property Master |
| Barbara Harris | ADR Voice Casting |
| Boyd Lacosse | Special Effects Technician |
| Edward A. Gutentag | Assistant Camera |
| Jim Goldthwait | Second Assistant Director |
| Brian Best | Apprentice Sound Editor |
| James W. Apted | Camera Loader |
| Carole Henderson Harrington | Assistant Editor |
| Robert Duggan | Best Boy Grip |
| Elizabeth Abate | Costumer |
| Scott H. Eddo | Makeup Supervisor |
| Kay Colvin | Utility Sound |
| Mo Henry | Negative Cutter |
| Stephen Fischer | Assistant Location Manager |
| Neil David Pontecorvo | Head Greensman |
| Diane Linn | ADR Recordist |
| Glenn Brown | Camera Production Assistant |
| Raul Moreno | Production Assistant |
| Patti McGuire | Assistant Production Coordinator |
| Andrea Morland | Art Department Production Assistant |
| Jim Duggan | Key Rigging Grip |
| Lonnie S. Gatlin | Assistant Chief Lighting Technician |
| Nick Vidar | Music Programmer |
| Travis Baumann | Compositing Artist |
| Karen Yokomizo | Assistant Accountant |
| Jeffrey W. Petersen | Chief Lighting Technician |
| Cheryl McHugh | Payroll Accountant |
| Sara Flamm | Production Secretary |
| Eric Smith | Electrician |
| Bob Herron | Stunts |
| Gary Damian Thomas | Storyboard Artist |
| Gilbert Rosales | Stunts |
| Jimmy Romano | Stunts |
| J.P. Romano | Stunts |
| Danny Rogers | Stunts |
| Troy Robinson | Stunts |
| Robby Robinson | Stunts |
| Gary Price | Stunts |
| Chris Palermo | Stunts |
| Jimmy Ortega | Stunts |
| John C. Meier | Stunts |
| Tom Lupo | Stunts |
| Fred Lerner | Stunts |
| Gene LeBell | Stunts |
| Freddie Jin | Stunts |
| Kevin L. Jackson | Stunts |
| Toby Holguin | Stunts |
| Frankie 'G' Garbutt | Stunts |
| Richie Gaona | Stunts |
| Gary Epper | Stunts |
| Doc Duhame | Stunts |
| Richard Drown | Stunts |
| Danny Costa | Stunts |
| Norm Compton | Stunts |
| Troy Brown | Stunts |
| Joey Box | Stunts |
| Joni Avery | Stunts |
| Gary Archer | Prosthetics |
| Drew Ann Rosenberg | First Assistant Director |
| Poly Veitzer | Second Assistant Camera |
| Jeff Durling | Electrician |
| Nikola Ristić | Electrician |
| Kenny Schneider | Electrician |
| Mark Soucie | Electrician |
| Danny Jimenez | Grip |
| Carlos M. Gallardo | Grip |
| Leslie Thorson | Assistant Location Manager |
| Julia K. Levine | Set Designer |
| Mark Poll | Set Designer |
| Troy Alan Peters | Dresser |
| Julie Beattie Iiams | Swing |
| Kai Blomberg | Swing |
| Chris Grantz | Swing |
| Patrick McGee | Swing |
| Doug Sieck | Swing |
