1 | Evelyn | H. Carter | A girl who
accidentally shot her father. |
| Conrad | Carter | Evie's husband. Deceased. |
2 | Alex | Warren | D.D.'s husband. |
| Jack | Warren | D.D.'s son. |
| D.D. | Warren | A sergeant detective at Boston homicide. |
| Kiko | | D.D's dog. |
| Phil | LeBlanc | D.D's former squad mate and one-time mentor. |
| Gary | Speirs | D.D's partner. |
| Carol | Manley | D.D's colleague. A petite detective. |
| Neil | | D.D's teammate. |
| Flora | Dane | A one-time kidnapping victim. The current survivor's advocate. |
| Jacob | Ness | A man who kidnapped Flora and raped her. |
3 | Darwin | Dane | Flora's brother. |
| Samuel | Keynes | The FBI victim specialist. |
4 | Bob | | A police officer. |
| Dick | Delaney | A top Boston criminal defense attorney. Evie's lawyer. |
5 | Rosa | Dane | Flora's mother. |
| Joyce | Hopkins | Evie's mother. |
| Danielle | Fitzpatrick | The Suffolk county ADA. |
6 | Kimberly | Quincy | The SSA. Helped Flora to be rescued. |
8 | Sharon | Ahearn | The principal at Evie's school. |
| Earl | Hopkins | Evie's father. |
| Cathy | Maxwell | Evie's friend. |
9 | Keith | Edgar | Flora's new friend. |
11 | Betsy | LeBlanc | Phil's wife. |
| Patricia | Di Lucca | Arson Investigator. Aka: Patti. |
12 | Edmund | Kemper III | A man who was raised by his abusive alcoholic mother. |
20 | | | T.O.R - The Onion browser of dark web. |
21 | Carter | Conner | Conrad Carter's alias. |
22 | Aarav | Patil | Earl's T.A. |
| Martin | Hoffman | The retired department chair at Harvard. |
| Katarina | Ivanova | A girl who substituted Earl's position when he died. |
23 | | | S.A.M. - Security Account Manager. |
24 | Rocket | Langley | A possible suspect. |
26 | William | Carter | Conrad's father. A Jacksonville detective. |
| Jennifer | Carter | Conrad's mother. |
27 | Tony | | The greeter. |
29 | Jules | LaPage | A man who made a threats to William when he was arrested. |
| Detective | Ange | D.D's colleague. |
| Tina | Maracle | Missing girl. |
| Sandi | Clipfell | Missing girl. |
| Mitchell | Paulson | A registered sex offender. |
| Monica | LaPage | Jules's ex-wife. |
| Dan | Cain | A retired Jacksonville detective. William's colleague. |
32 | | | MBTA - Massachusetts Bay Transportation Authority. |
33 | I.N | Verness | Jacob Ness's username at the Dark Web. |