| Lilia |
Aghzafi | Worked twenty years with Vegas Metro. |
| Scott |
Anderson | A reporter. |
| Emma |
Arciniega | One of Mallory's friends. |
| Makani |
Ballard | The estranged mother of Detective Renée Ballard. |
| Renée |
Ballard | The lead LAPD detective running the Open-Unsolved Unit. |
| Sally |
Barnes | The current owner of Thawyer's place. |
| Tracy |
Bell | A woman who joined Dehaven and offered her camper van. |
| Federico |
Beltran | A criminalist. |
| Andy |
Bennett | One of Van Ness' classmates. |
| Victor |
Best | Rodney's close friend. |
| Lionel |
Boden | Robert's acquaintance. Aka: Lion. |
| Harry |
Bosch | A retired LAPD homicide detective battling cancer; Ballard's mentor. |
| Madeline |
Bosch | The daughter of Harry Bosch. Aka: Maddie. |
| Kimberly |
Boyle | Dehaven's ex-wife. |
| Marty |
Branch | The replacement of Rod Van Ness. |
| Charles |
Bronson | An American actor. |
| Paul |
Buckley | One of the technicians. |
| Edmund |
Burke | A writer and former British Paymaster of the Forces. |
| Nicolas |
Cage | An American actor and film producer. |
| James |
Camp | One of the technicians. |
| Raymond |
Chandler | An American crime fiction writer. |
| Lee |
Child | A British author. |
| Harlan |
Coben | An American writer. |
| Judge |
Coen | A judge who handles criminal matters. |
| James |
Crumley | An American author. |
| Matt |
Damon | An American actor and film producer. |
| Seth |
Dawson | A victim of a property crime. |
| Thomas |
Dehaven | The badge buyer. |
| Dean |
Delsey | A man involved in the theft of Detective Ballard's badge, gun, and ID. |
| Robert |
Delsey | Dean's father. Aka: Bobby. |
| Carl |
Detry | The chief of police. |
| Angie |
Dickinson | A retired American actress. |
| Nancy |
Drew | A fictional character. |
| Winston |
Dubose | Detective assigned to the murder of Colleen Hatteras. |
| Dr. Cathy |
Elingburg | A therapist. |
| James |
Ellroy | An American crime writer and essayist. |
| Gina |
Falwell | One of Rod Van Ness' classmates. |
| Mrs. |
Fanning | Elyse's sister. |
| Dan |
Farley | Ballard's contact on a Maui fire task force. |
| Ashley |
Fellows | Ballard's friend in the Robbery-Homicide Division. |
| Elyse |
Ford | One of the victims of the Black Dahlia Avenger. |
| Adolfo |
Galvez | Willa Kenyon's boyfriend. |
| Captain |
Gandle | Ballard's boss. |
| Claudia |
Gimble | A reporter. |
| Bill |
Goldberg | A retired professional wrestler and football player. |
| Charlotte |
Goring | Detective assigned to the murder of Colleen Hatteras. |
| Sue Taylor |
Grafton | An American author of detective novels. |
| Gerald |
Grover | A gangster. |
| Colleen |
Hatteras | A dedicated, eccentric volunteer with the LAPD Open-Unsolved Unit. |
| Horace |
Heidt | A radio bandleader in the 1940s and '50s. |
| Doreen |
Hudson | The longtime director of the LAPD crime lab. |
| Nathan |
Hyatt | A former student arrested for indecent exposure. |
| Willa |
Kenyon | One of the victims of the Black Dahlia Avenger. |
| Michael |
Koryta | An American author. |
| Captain |
LaBrava | The commander of operations at the Ahmanson Center. |
| Tom |
Laffont | A retired FBI agent. |
| Kelly |
Latham | The head of the DNA lab. |
| John |
Lewin | The deputy DA assigned to prosecute cases from the Open-Unsolved Unit. |
| Mr. |
Mann | Sally Barnes' acquaintance. |
| Paul |
Masser | A former prosecutor with the district attorney's office. |
| Carson |
McCullers | An American novelist and short-story writer. |
| Hildy |
McManus | Captain Gandle's adjutant. |
| Rodney |
McNamara | One of Mallory's classmates. |
| Stu |
Mundel | The pilot of the news choppers. |
| Ernest |
O'Fallon | The recently elected district attorney. Aka: Ernesto. |
| Georgia |
O'Keeffe | An American painter. |
| Gordon |
Olmstead | An FBI agent. |
| Lukas |
Ortiz | A man from the FBI. |
| Chuck |
Pell | A technician. |
| Gil |
Perado | A detective from the Robbery-Homicide Division. |
| Anders |
Persson | A 28-year-old member of Renée Ballard's Open-Unsolved Unit. |
| Tom |
Petty | An American singer-songwriter and guitarist. |
| Carol |
Plovc | A deputy district attorney. |
| Mrs. Nancy |
Porter | The owner of Echo Park Storage. |
| Jonathan |
Purcell | Presiding judge of the Los Angeles Superior Court. |
| Nickolas |
Purcell | A 24-year-old man whose DNA triggers a familial match to the Pillowcase Rapist. |
| Vivian |
Purcell | Jonathan Purcell's wife. |
| Katie |
Randolph | Taylor's date. |
| Robin |
Richardson | Mallory's mother. |
| Mark |
Rothko | An American painter. |
| Donald |
Russell | Unemployed man with a history of drug-related arrests. |
| Maxine |
Russell | Donald's ex-wife. |
| Sara |
Santana | The twenty-one-year-old girlfriend of Nicholas Purcell. |
| Randy |
Sepulveda | Emma Arciniega's husband. |
| Helen Catherine |
Sharpe | The maiden name of Dr. Cathy Elingburg. |
| Amanda |
Sheridan | Taylor Weeks' acquaintance. |
| Elizabeth |
Short | The victim of the 1947 unsolved Black Dahlia murder case. |
| Abby |
Sinclair | One of the victims of the Pillowcase Rapist. |
| Frederic |
Standard | Thomas Dehaven's co-conspirator. |
| Emmitt |
Thawyer | A historical serial killer. |
| Jacqueline |
Todd | Mallory's friend. Aka: Jackie. |
| Darcy |
Troy | The DNA technician. |
| Rodney |
Van Ness | Mallory's prom date. |
| Joseph |
Wambaugh | An American writer. |
| Shaquilla |
Washington | A victim of sexual assault and murder. |
| Mr. |
Waxman | The manager of Echo Park Storage. |
| Taylor |
Weeks | One of Van Ness' classmates. |
| Bruce |
| Barnes's husband. |
| Cameriere |
| The man who invented the comparison index. |
| Cecily |
| One of the victims of the Black Dahlia Avenger. |
| Cleopatra |
| The queen of the Ptolemaic Kingdom of Egypt. |
| Dan |
| Ballard's acquaintance. |
| Debra |
| One of the victims of the Black Dahlia Avenger. |
| Eastwood |
| A security guard. |
| Edward |
| Robin's husband. |
| Gacy |
| A girl whose body was buried in the basement. |
| Harmony |
| Rod Van Ness' partner. |
| Landry |
| A receptionist. |
| Lorraine |
| One of the victims of the Black Dahlia Avenger. |
| Mallory |
| Nick's biological mother. |
| Martha |
| Mrs. Fanning's niece. |
| Pinto |
| Ballard's dog. |
| Sandy |
| One of the victims of the Black Dahlia Avenger. |
| Siobhan |
| One of the victims of the Black Dahlia Avenger. |
| Spencer |
| One of Olmstead's men. |
| Tutu |
| Renée Ballard's beloved late grandmother. |
| Van |
| A man whom Renée met at the beach. |
| Vivian |
| Judge Purcell's wife. |
