| 1 | Susan |
| A fellow in the clinical research program. Aka: Stacey, Samantha |
| | Mallory |
Quinn | Protagonist |
| | Russell |
| Mallory's sponsor. Aka: Coach |
| | Ted |
Maxwell | Teddy's father |
| | Caroline |
Maxwell | Teddy's mother |
| | Teddy |
| Ted and Caroline's five-year-old son |
| | Jeannie |
| Russell's sister |
| 2 | Anya |
| Teddy's special friend |
| | Robert |
| Teddy's baby bird |
| 3 | Beth |
| Mallory's little sister |
| | Cassiopeia |
| Beth's imaginary friend |
| 4 | Adrian |
| The landscaper |
| | Mitzi |
| The next-door neighbor |
| | Annie |
Barrett | Artist and painter. Murdered |
| 6 | Isaac |
| A thirty-something year old man Mallory had a brief fling with |
| | Mrs. |
Guber | A psychic. Aka: The Oracle |
| 7 | Sofia |
| Adrian's mother |
| | Ignacio |
| Adrian's father. Aka: El Jefe, The Lawn King |
| 8 | George |
Barrett | An engineer for DuPont |
| | Butch |
Hercik | New owner of the house |
| | Bobbie |
Hercik | New owner of the house |
| 10 |
Gabriella | |
Adrian's cousin |
| | Tracy |
Bantam | Point guard for the Lady Lions - Penn State's women's basketball team |
| 12 |
Doreen | |
Russell's lady friend |
| 17 |
Jean | |
George's wife |
| | Gerhard |
Richter | Artist |
| | Dolores Jean |
Campbell | George and Jean's niece |
| | Mike |
| Ted's coworker |
| | Ed |
| Ted's coworker |
| 21 |
Chenguang | |
Beth's best friend |
| | Lacey |
| Mallory's friend |
| | Tony |
| A friend of Mallory's mother |
| 23 |
Darknowsky | |
Police officer |
| | Briggs |
| Detective |
| | Kohr |
| Detective |
| 24 |
Jalissa | Bell |
Mrs. Campbell's caretaker |
| | Curtis |
| Dolores's son |
| | Willie |
| Curtis's Pop-Pop |
| | Tyler |
| Annie's brother |
| 27 |
Margit | Baroth |
A friend of Caroline's from Seneca Lake |
| | Flora |
| Margit's daughter |
| | Jozef |
| Margit's husband |
