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