The following is a list of characters in L.A. Noire.
LAPD
- Cole Phelps - Patrol Officer/Detective
- Ralph Dunn - Patrol Officer - Phelps' partner in Patrol
- Stefan Bekowsky - Traffic, Detective - Phelps's partner
- Gordon Leary - Traffic, Captain - Phelps's Captain
- Rusty Galloway - Homicide, Detective - Phelps's partner
- James Donnelly - Homicide, Captain - Phelps's Captain
- Roy Earle - Vice, Chief Detective - Phelps's partner
- Lazarus Cafarelli - Vice, Captain - Phelps's Captain
- Archie Colmyer - Vice, Lieutenant - Phelps's Commanding Officer
- Herschel Biggs - Arson, Detective - Phelps's partner
- Lachlan McKelty - Arson, Captain - Phelps's Captain
- Malcolm Carruthers - Coroner
- William Ward - Detective
- William Tilden - Detective
- Floyd Rose - Homicide Detective
- Joseph Hobbes - Traffic Detective
- Theodore Rossi - Detective
- Roger Becket - Crime Scene Photographer
- Clyde Hart - Patrolman
- Jack Tabot - Patrolman
- Enrique Gonzales - Patrolman
- Leroy Tate - Patrolman
- Sam Kaplan - Patrolman
- Lieutenant Taylor
- Mike Branigan - Patrolman
- William Worrell - Police Chief
- Clem Dalbey - Patrolman
- Harry Sumner - Patrolman
- Max Faber - Patrolman
- Thomas Houlihan - Patrolman
- Finis Brown - Detective Sergeant
- Harold Caldwell - Burglary, Detective
- Emmett Campbell - Patrolman
- David Ramirez - Patrolman
- John Dierkes - Patrolman
- Levon Tate - Patrolman
- Dudley Wheelright - Patrolman
- Adrian Tucker - Investigator
- Graham Sommers - Detective
- Danny Aiello - Patrolman
- Ray Pinker - Detective
- James Hopkins - Lieutenant
- Mel Fleischer - (Watch) Police Commander
- Parker - Detective
- Green - Detective (Parker's partner)
- McManus - Detective
- John Hopkins - Watch Commander
- Frank Lacey - Watch Commander
- Morris Callahan - Patrolman
- Herbert Walwick - Patrolman
- Glen Wheeler - Patrolman
- Victor Zimmerman - Patrolman
Suspects
- Errol Schroeder - "Upon Reflection"
- Wendell Bowers - "Warrants Outstanding"
- Edgar Kalou - "Buyer Beware"
- Adrian Black - "The Driver's Seat"
- Frank Morgan - "The Driver's Seat"
- Margaret Black - "The Driver's Seat"
- Leroy Sabo - "A Marriage Made in Heaven"
- Lorna Pattison - "A Marriage Made in Heaven"
- William Shelton - "A Marriage Made in Heaven"
- Mark Bishop - "The Fallen Idol"
- Marlon Hopgood - "The Fallen Idol"
- Gloria Bishop - "The Fallen Idol"
- Jacob Henry - "The Red Lipstick Murder"
- Alonzo Mendez - "The Red Lipstick Murder"
- Hugo Moller - "The Golden Butterfly"
- Eli Rooney - "The Golden Butterfly"
- Angel Maldonado - "The Silk Stocking Murder"
- Clem Feeney - "The Silk Stocking Murder"
- Lars Taraldsen - "The White Shoe Slaying"
- Richard Bates - "The White Shoe Slaying"
- James Jessop - "The White Shoe Slaying"
- Stuart Ackerman - "The White Shoe Slaying"
- James Tiernan - "The Studio Secretary Murder"
- Grosvenor McCaffrey - "The Studio Secretary Murder"
- Garrett Mason - "The Quarter Moon Murders"
- Fleetwood Morgan - "The Black Caesar"
- Jermaine Jones - "The Black Caesar"
- Merlon Ottie - "The Black Caesar"
- Jose Ramez - "The Black Caesar"
- Lenny Finkelstein - "The Black Caesar"
- Albert Hammond - "The Set Up"
- Carlo Arquero - "The Set Up"
- Jack Kelso - "Manifest Destiny"
- Courtney Sheldon - "Manifest Destiny"
- Mickey Cohen - "Manifest Destiny"
- Reginald Varley - "The Gas Man"
- Matthew Ryan - "The Gas Man"
- Herbert Chapman - "The Gas Man", "A Walk In Elysian Fields"
- Walter Clemens - "The Gas Man"
- Leland Monroe - "A Walk In Elysian Fields", "House of Sticks", "A Polite Invitation" (Secondary antagonist)
- Curtis Benson - "A Polite Invitation"
- Ira Hogeboom - "A Different Kind Of War" (Secondary antagonist)
- Henry Arnett - "The Naked City"
- Harold Stoneman - "The Naked City"
- Willy Reade - "The Naked City"
Victims
- Jessica Hamilton
- June Ballard
- Adrian Black
- Julia Randall
- Celine Henry
- Antonia Maldonado
- Evelyn Summers
- Cornell Eustace Tyree
- Tyrone Anthony Lamont
- Theresa Taraldsen
- Deidre Moller
- Scooter Peyton
- Everett Gage
- Lester Pattison
- Candy Edwards
- Eddie McGoldrick
- Chris Majewski
- John Higgins
- Patrick Connolly
- Michael Driscoll
- Walter Beckett
- Hank Sawyer
- Edwina Sawyer
- Henry Sawyer
- Jessica Sawyer
- Mike Morelli
- Lou Buchwalter
- Harlan Fontaine
Witnesses
- Oswald Jacobs
- Dudley Lynch
- Nate Wilkey
- Virginia Reynoldson
- Jennifer Horgan
- Margaret Black
- Shannon Perry
- Clovis Galletta
- Andrew Fickman
- John Ferdinand Jamison
- Heather Swanson
Others
- Jack Kelso (Deuteragonist) - DA's Investigator
- Elsa Lichtmann - Jazz club singer and Phelps' love interest
- Harlan Fontaine (Primary antagonist)
- Courtney Sheldon
- Marie Phelps - Phelps' wife
- Leonard Petersen- Assistant D.A. (District Attorney)
- Albert Lynch - Los Angeles Fire Department - Arson Investigator
- Guy McAfee
- Dick McColl
- Tan Do
- Candy Edwards
- Ivan Rasic
- Richard Coombs
- Gloria Bishop
- Ira Hogeboom
- Curtis Benson
- Johnny Stompanato
- Stuart Ackerman
- Carlo Arquero
- Richard Bates
- Gabriel Del Gado
- Albert Hammond
- Cliff Harrison
- Celia Stanley
- Juan Francisco Valdez
- William Dewey
- Anna Rodriguez
- Marlon Harwood
- Leroy Sabo
- Michelle Moller
- Mrs. Pattison
- Fetcher Bowron
- Leland Monroe
- Henry Arnett
- Fleetwood Morgan
- Vernon Mapes
- Grosvenor McCaffrey
- Gordon Leitvol
- Airto Sanchez
- Hank Merrill
- James Kennedy
- Owen Daniher
- Howard Parnell
- John Cunningham
- Lars Taraldsen
- Don Steffens
- Catherine Barton
- Diego Aguilar
- Harold Stoneman
- Dudley Forman
- Merlon Ottie
- Benny Cluff
- Walter Clemens
- Olivia Volkert
- John Holmes
- Bernard Metier
- Sgt. Chisholm
- Marlon Hopgood
- Herbert Chapman
- Walter Robbins
- Beverly Evestrom
- Joe Nesco
- Frank Osterman
- Steven Bigelow
- Sergio Rojas
- Willie Holbeck
- Russell Holbeck
- Fred Nicholson
- Donald Sandler
- Terrance Chilton
- Steven Hendricks
- Arthur Moss
- Eileen Clark
- Audrey Gill
- James Elsinore
- Dmitri Pedachenko
- Marlene Varner
- Harry Sullivan
- Daniel Ullman
- Elinor Hopkin
- Leo Epstein
- Victor Jiminez
- Arthur Moth
- Marion Launders
- Marguerite Cansino
- Don Carraway
- Walter Mensch
- David Bremner
- Deborah Williams
- Arturro Rivera
- Nelson Gaines
- Cynthia Graham
- Hanna Taraldsen
- Dan Rogers
- William Purdy
- Benjamin Keever
- Gianni Temperino
- Victor Sanders
- Freddie Calhoun
- Frank Zeferelli
- Stuart Barnes
- Chin Wong
- Willard Philbrick
- Marlene Belle
- Vernon McNeal
- Wilt Edgerson
- Harry the Bookmaker
- Harry Douglas
- Hollis Stone
- Page Franklin
- Ernie Barrow
- Jacob Schmidt
- Winifred Grey
- Paul Kadarowski
- Ivan Robinson
- Elias Webley
- Ambulance Officer Remy
- Alvin Woolf
- Saxon Shirley
- Chuck Vanderhorst
- Jake Rampley
- Jack Foreman
- Grace Houston
- Sam Turner
- Edward Hemmings
- Stephen Vagg
- Monty Reynolds
- Herman Denzler
- James Maher
- Joseph Jackson
- William Barlow
- Rex Buckland
- Troy Brown
- Emily Luckenbach
- Lena Taraldsen
- Philip Tonkins
- Darcy Connors
- Karen Hiltscher
- Eddie Findlay
- Harold Kirby
- Eddie Margolis
- Adelaide Finch
- Ray the Bookmaker
- Garfield Henderson
- Walter Tyler
- Louise Steffens
- Morris Greenfield
- Daniel Wellington
- Chester King
- Nurse Dabner
- Dale Gadberry
- Betty Joyner
- Emmet Schneider
- Hank Newbern
- Lewis Pelton
- Maria Latorella
- Ernest Avery
- Alfonse Dagbo
- Louis Lincoln
- Lefty Roberts
- Raymond Gordon
- Lester Wagner
- Francis Watkins
- Jesse Dunne
- Geneva Mayhew
- Rufus Dixon
- Calvin Shaughnessy
- Kurt Holland
- Eddie Adams
- Ronald Bellamy
- Charlie Conway
- Doris West
- Nathan Duntly
- Elizabeth Eberly
- Rudy Galletta
- Florence Jenkins
- Little Boy
- James Hainey
- Eileen Clark
- Andrew Pickman
- Scott Hillier
- Travis Hornibrook
- Maureen Kegley
- Barton Keyes
- Nurse Randall
- Judy Lynn
- Bob Marshall
- Mervin the Bookmaker
- George Murphy
- Frank Norris
- Gale O' Hara
- George Hennessey
- Steven Hoover
- Herman Salter
- Jess Sammons
- William Strong
- Chuck Totterman
- Harry Westcott
- Ruth Douglas
- Stuart Barclay
- Eric Salzman
- Paul Miller
- Georgia Kent