| 1 | Renee | Ballard | Protagonist. A Hollywood detective. Aka: Sally Ride. |
| | Stan | Dvorek | The police sergeant. Aka: Relic. |
| | Anthony | Anzelone | Dvorek's officer. Aka: Caspar. |
| | Dwight | Doucette | Dvorek's officer. Aka: Deuce. |
| 2 | John | Jenkins | Ballard's partner. |
| | Harry | Bosch | Retired police detective investigates the Daisy Clayton case. |
| | Daisy | Clayton | A runaway girl who was killed 9 years ago. Deceased. |
| | Munroe | | The lieutenant. The watch commander. |
| | Cesar | Rivera | A police detective in Hollywood Sex Crimes Unit. |
| | Adam | Sands | Daisy's boyfriend. |
| | Harvey | Pounds | Bosch's former lieutenant. Deceased. |
| 3 | Robert | Olivas | Ballard's former lieutenant. |
| | Lucia | Soto | A cold-case detective. Bosch's partner. |
| | Elizabeth | Clayton | Daisy's mother. |
| | King | | One of the detectives handling Daisy Clayton's case. |
| | Ken | Chastain | Ballard's former partner.
Premier investigator in sex killings. |
| | David | Lambskin | The expert in sexually-motivated homicide at RHD. |
| 5 | Atticus | Finch | The Judge. |
| 6 | Bella | Lourdes | Senior detective at SFPD detective bureau. Bosch's partner. |
| | Oscar | Luzon | Bell's colleague. |
| | Danny | Sisto | Bella and Oscar's colleague. |
| | Trevino | | The SFPD captain. |
| | Cristobal | Vega | Murdered. A veteran gang member. Aka: Uncle Merda. |
| | | | Varrio San Fer 13 - A violent gang in San Fernando Valley. |
| | Martin | Perez | An inventory manager at a discount shoe store. A witness. |
| | Tranquillo | Cortez | Nephew of Vega's wife.
Suspect in Cristobal Vega's murder. |
| | Irwin | Rosenberh | A dayside watch commander. |
| 7 | Eleanor | Bosch | Harry's former wife. |
| | Madeline | Bosch | Harry's daughter. Aka: Maddie. |
| 8 | T. Farmer | | A police officer in Hollywood. |
| 9 | Hererra | | A female police officer. |
| | Dyson | | A female police officer. |
| | Mr. | Peralta | Manager of establishment where the burglary took place. |
| | Marv | | Mr. Peralta's bouncer. |
| | Heather | Rourke | The helicopter spotter. A pilot. |
| | Dan | Summer | Heather's pilot partner. |
| 10 | John | McMullen | Man interviewed in Clayton's case. Aka: John The Baptist. |
| 12 | Mr. | Cardinale | The owner of Pacoima Tire & Muffler. |
| | Tom | Yaro | The Lapad detective from Foothill Division. |
| | Harmon | | An Evidence technician from L.A. county. |
| | Ted | Lannark | The Sheriff's investigator. |
| | Boyce | | Ted's partner. |
| 13 | Jose | Rodriguez | Lourdes's cousin. SFPD's gang intel expert. Aka: J-Rod. |
| 14 | Aaron | Hayes | Lifeguard assigned to Rose Station. Ballard's boyfriend. |
| | Lola | | Ballard's dog. |
| 15 | Hannah | Chavez | A police lieutenant who worked PM Watch. Mason's partner. |
| 16 | Felsen | | Daywatch blue suiter. Ballard's
acquaintance. |
| | Torborg | | Daywatch blue suiter. Ballard's
acquaintance. Aka: Torpedo. |
| | Roger | Dillon | Owner of a biohazard cleaning service called CCB. |
| | Bobbi | Clark | The deceased woman's niece. |
| | | | CCB - Chemi-cal Bio Services. |
| 17 | Theodore | Bethel | The painting thief. |
| 18 | Jaime | Henriquez | The UCLA trained physician. A suspected gang doctor. |
| 19 | Dr. | Zhang | Bosch's acupuncturist. |
| 20 | Chloe | Lambert | The girl who reported Danny Monahan. |
| | Danny | Monahan | A stand up comic actor. |
| | Gina | Gardner | A blue suiter. Chloe's police officer. |
| | Aisha | | Chloe's friend. |
| 22 | Ephrem | Zocalo | The owner of Zocalo Auto Services. |
| 23 | Carlos | Mejia | The suspected shooter of Martin Perez. The SanFer OG. |
| | Chief | Valdez | The chief of police in San Fernando Valley. |
| 24 | Cisco | Wojciechowski | A private investigator. Bosch's friend. |
| | Mickey | Haller | A defense attorney. Bosch's step-brother. |
| | Jerry | Edgar | Bosch's former partner. |
| 25 | Gabriel | Mason | Police
lieutenant assigned as Hollywood division liaison. |
| | | | OCP - Officer of the Chief of Police. |
| | Scott | Calder | GRASP's guru. Professor University of Southern California. |
| 26 | Dennis | Eagleton | Man arrested multiple times.
Picked up by moonlight mission. |
| | Jacob | Cady | Missing. |
| | Talisman | Prada | Cady's roommate. Tyler Tyldus. |
| 27 | Carolyn | Wickwire | The superior court judge. Ballard's friend. |
| | Lieutenant | McAdam | The head of the Hollywood Division Detective Bureau. |
| 30 | Travis | Lee | Homicide detective who took over the Jacob Cady Case. |
| | Rahims | Rogers | Travis Lee's partner. |
| 31 | Ali | Rohat | The shady doctor. |
| 32 | Kurt | Pascal | The porno actor. |
| | Wilson | Gayley | Pascal's cameraman. |
| | Tanya | Vickers | The prostitute. |
| | Beatrice | Beaupre | Director of Adult Films. |
| 34 | Edward | David | The former chief. |
| 35 | | | La Eme - The Mexican Mafia. |
| 36 | Audie | Haslam | A female tattoo artist who was murdered by a customer. |
| | Clancy | Devoux | The motorcycle gang affiliate. |
| | Sergeant | Klikenberg | A long-time veteran. |
| 41 | Omar | Cespedes | A man who ran the SIS squad working the Cortez Case. |
| | Mike | Echaverria | An investigator with the medical examiner's office. |
| 43 | Jimmy | | Speedy's assistant. |
| 44 | David | Manning | Witnessed the
murder at tattoo shop. An ex-smuggler. |
| | Detective | Peppers | The detective at the tattoo shop murder case. |
| | Detective | Livingstone | The detective at the tattoo shop murder case. |
| | Mr. | Mittleberg | The supervisor at American Storage Products. |
| 48 | Sarah | Bender | The girl that Dillon killed. |
| 49 | George | Bender | Sarah's father. |
| 50 | Palmer | | A detective who answers Bosch's call. |
