| 1 | Barbara |
Van Laar | The camp owner's daughter. |
| | Louise |
Donnadieu | The counselor. |
| | Melissa (1) |
R. | One of the campers. |
| | Melissa (2) |
| One of the campers. |
| | Jennifer |
| One of the campers. |
| | Michelle |
| One of the campers. |
| | Amy |
| One of the campers. |
| | Tracy |
Jewell | One of the campers. |
| | Kim |
| One of the campers. |
| | Caroline |
| One of the campers. |
| | Annabel |
Southworth | The counselor in training. |
| | John Paul |
McLellan Jr. | The man in the clearing. Louise's ex-boyfriend. |
| | Lee |
Towson | A prep chef and dishwasher. |
| | Donna |
Romano | Girlfriend of Tracy's father. |
| | Alice |
Ward-Van Laar | Barbara's mother. |
| | Peter |
Van Laar III | Barbara's father. Mr. V. |
| | Dr. |
Lewis | Alice's doctor. |
| | T.J |
Hewitt | Director of Camp Emerson. |
| | Vic |
Hewitt | TJ's father. Ward's butler. |
| | Garland |
| Peter's cousin. |
| | Balsam |
| Tracy's cabin. |
| | Old |
Jones | The Ghost of an Adirondack Guide. |
| | Scary |
Mary | The jilted wife of a Van Laar ancestor. AKA: Maryanne Stoddard. |
| | Slitter |
| A man who haunts the imagination of campers. AKA: Jacob Sluiter. |
| | Mitchell |
| A swimming instructor. |
| | Lowell |
Cargill | The name of the bot that Tracy met. |
| | Davey |
| The boy who has a crush on Barbara. |
| | Bear |
Van Laar | The Van Laar family's missing son. AKA: Peter IV. |
| | Jesse |
| Louise's younger brother. |
| | Marnie |
McLellan | John Paul's sister. |
| | John Paul |
Sr. | John Paul's father. The Van Laar's attorney. |
| | Nancy |
McLellan | John Paul's mother. |
| | Roswell |
Flower | A governor. |
| 2 | Delphine |
Ward | Alice's sister. |
| | George |
Barlow | Delphine's husband. |
| | Carl |
Stoddard | A gardener at the Van Laar Preserve. |
| | Marcy |
Thibault | The local operator. |
| | Dick |
Shattuck | A fire brigade volunteer. |
| | Bob |
Alcott | A teacher. One of the fire volunteers. |
| | Bob |
Lewis | One of the fire volunteers. |
| | Georgette |
Thibault | Dick's wife. |
| | Joe |
Stoddard | Carl's cousin. |
| | Frank |
McLellan | One of Peter's oldest friends. |
| | Howie |
Southworth | One of Peter's oldest friends. |
| | Merrill |
Williams | One of Peter's oldest friends. |
| | Peter |
Van Laar III | Barbara and Bear's grandfather. |
| | Scotty |
| Carl and Maryanne's son. Deceased. |
| | Jennie |
| Ron's hound. |
| | Ronald |
Shattuck | Dick's brother. AKA: Ron. |
| 3 | Judypta |
Luptack | The first female investigator in the state. AKA: Judy. |
| | Cindy |
| A female state trooper. |
| | Linda |
| A female state trooper. |
| | Niecy |
| A female state trooper. |
| | Leonard |
Luptack | Judy's brother. |
| | Denny |
Hayes | Judy's senior. |
| | Helen |
Van Laar | Barbara's granddaughter. |
| | Charles |
Hanover | Paulette's husband. |
| | Chick |
Janowicz | The club general manager. |
| | Paulette |
Hanover | The woman that Judy caught stealing. |
| | Susan |
Yoder | The director of Emily Grange School. |
| | Mrs. |
Burke | The guardian at West House. |
| | Polly |
| One of the cooks. |
| 4 | Dr. |
Treadwill | Carl's doctor. |
| | Sharon |
| The night nurse. |
| | Lorraine |
| The new nurse. |
| | Dr. |
Dunwitty | Owner of the institute. |
| | Geraldine |
Dewitt | Alice's friend. |
| 5 | LaRochelle |
| The captain. |
| | Lowry |
| An investigator. |
| | Mike |
| One of Louise's producers. |
| | Chuck |
| One of Louise's producers. |
| 6 | Jeannie |
Clute | Van Laar's cook. Carl Stoddard's father. |
| | Walter |
| Lowell's friend. |
| | Christopher |
| One of the campers. |
| | Debbie |
Finley | Tracy's neighbor. |
| | Warren |
| Peter's cook. |
| | Goldman |
| One of the investigators. |
| | Marty |
Luptack | Judy's father. |
| | Carol |
Donnadieu | Louise's mother. |
| | Mr. |
Muldauer | Christopher's father. |
| | Mrs. |
Muldauer | Christopher's mother. |
| 7 | Neil |
| Jesse's friend. |
| | Anna |
| The conservator. |
| | Mrs. |
Stoddard | Antonia's mother. |
| | Antonia |
Stoddard | Louise's classmate. |
| | Peter |
Van Laar I | Barbara and Bear's great-grandfather. |
| | Dan |
Hewitt | Vic's father. |
| | Clara |
Hewitt | Dan's wife. |
| | Charlie |
Hewitt | Vic's brother. |
| | Connie |
Driscoll | The waitress. |
| | Molly |
Jewell | Tracy's mother. |
| | Leonard |
| Judy's brother. |
