| 1 | Brooke |
Lyons | One of the narrators |
| | Whitney |
Gilmore | One of the narrators, Kiersten's best friend |
| | Kiersten |
McCann | drowned, Mom's Club founder. Aka: Kaykay. |
| 2 | Jade |
Porter | One of the narrators, Kiersten's close friend |
| | Detective |
Perez | Lead detective on Kiersten's case |
| | Rinley |
McCann | Kiersten's baby daughter |
| | Colin |
Griffin | Whitney's husband |
| 3 | Natasha |
| Member of the Mom's Club |
| | Carl |
| One of the technicians on the crisis-response team |
| 4 | Julian |
Lyons | Brooke and Abby's son |
| | Abby |
Blackman | Brooke's ex-wife |
| | Liza |
| Abby's lover |
| | Rebecca |
| Abby's co-worker |
| 5 | Colleen |
| Member of the Mom's Club |
| | Taylor |
| Member of the Mom's Club |
| 6 | Tommy |
McCann | Kiersten's husband |
| | Shawn "Jay-Z" |
Carter | Famous American rapper, record executive, and businessman (neighbor of Kiersten) |
| 8 | Ryan |
Porter | Jade's husband |
| | Iris |
Porter | Jade's daughter |
| 10 |
Lily | Porter |
Jade and Ryan's daughter |
| 11 |
Tessa | |
Jade's friend |
| | Ebony |
| Jade's friend |
| | Raquel |
| Taylor's friend |
| | Zoe |
| Taylor's friend |
| | Emily |
| Taylor's friend |
| | Robin |
Williams | American actor & comedian |
| 13 |
Harry | Winston |
Whitney's neighbor |
| 16 |
Molly | |
Restaurant server |
| 19 |
Grace | |
Whitney's nanny |
| | Frank |
| Detective Perez's colleague |
| | Jasmine |
| One of Whitney's escort service girls |
| | Lolita |
| One of Whitney's escort service girls |
| | Devin |
| One of Whitney's escort service girls |
| | Allen |
Grigsby | Whitney's creepy client. Aka: Dustin Miller |
| 21 |
Asher | Gilmore |
Whitney's son |
| 25 |
Erika | |
Brooke's best friend |
| 26 |
Jeffrey | Dahmer |
Convicted American serial killer and cannibal (1960-1994), aka "The Milwaukee Cannibal" |
| 30 |
Jamar | King |
One of Whitney's first clients |
| | Camille |
| Whitney and Colin's swinger partner |
| 34 |
Elliott | |
Dutto's son |
| 35 |
Jeff | |
Abby's lawyer |
| | Goldberg |
| The judge |
| | Gill |
| Brooke's attorney |
| 45 |
Josie | |
The clinic's receptionist |
