| Matthew |
Baines | Asst. County Attorney |
| Aria |
Dhawan | Member of call-in book club |
| Roman |
Dhawan | Aria's husband |
| Tom |
Doggett | Newspaper Editor |
| Shyla |
Dunn | Abused a girl Lisa helped with at the hospital |
| Stan |
Erenstad | Groundskeeper at cemetary |
| Denis |
Farrell | District Attorney in Thief River Falls |
| Gillian |
Farrell | Denis Farrell's wife |
| Fiona |
Farrell | Denis Farrell's daughter |
| Daniel |
Farrell | Danny's name |
| Wilson |
Hoke | Hospital Administrator |
| Mrs. |
Lancaster | Lives on a farm |
| Eldred |
Lancaster | Lives on the farm, drives a work van |
| Nick |
Loudon | Fiona's husband |
| Tom |
Manno | Father Manno (Priest) |
| Laurel |
March | Lisa's best friend |
| Curtis |
March | Laurel's husband |
| Keri |
McDonnell | Lisa's neighbor |
| Emma |
McDonnell | Keri's daughter |
| Lisa |
Power | Author of the book Thief River Falls |
| Madeline |
Power | Lisa's Mom, killed in a highway accident |
| Noah |
Power | Lisa's twin brother |
| Jerry |
Power | Lisa's father |
| Anton |
Power | Lisa's brother |
| Charles |
Power | Lisa's brother |
| Samuel |
Power | Lisa's brother |
| Judith |
Reichl | Sr. Librarian |
| Janie |
Swetland | Noah's fiance |
| Willow |
Taylor | Writer, poet |
| Will |
Woolrich | FBI in Minneapolis |
| Pardue |
| Name of a lost boy |
| Danny |
| Lisa's fiance |
| Garrett |
| Deputy Sheriff |
| Harlan |
| Missing boy |
| Liam |
| Muscled red-haired man |
| Stoll |
| Deputy Sheriff |
| Ziggy |
| Laurel's horse |
| Carl |
| Laurel's horse |
| Missy |
| Waitress at the cafe |
| Katy |
| Girl in Cemetery |