| Tess |
Alcott | The police chief. |
| Julie |
Andrews | Singer and actress. |
| Callum |
Auguste | Indigo's lover; a painter. |
| Curtis |
Carver | Previous owner of Baneberry Hall who killed his daughter and himself. |
| Katie |
Carver | Curtis Carver's daughter. |
| Marta |
Carver | Curtis Carver's wife. |
| Wendy |
Davenport | Arthur's receptionist. |
| Elsa |
Ditmer | Baneberry Hall's housekeeper. |
| Hannah |
Ditmer | Elsa's daughter. |
| Petra |
Ditmer | Elsa's daughter who went missing. |
| Clark |
Gable | Movie star and friend of William Garson. |
| Indigo |
Garson | William Garson's daughter. |
| William |
Garson | The original owner of Baneberry Hall. |
| William |
Garson III | Grandson of William Garson. |
| William |
Garson Jr | Son of William Garson. |
| Dr. |
Harris | Maggie's former therapist. |
| Dane |
Hibbets | Current caretaker of Baneberry Hall; Walt's grandson. |
| Walt |
Hibbets | Baneberry Hall's old groundskeeper. |
| Ewan |
Holt | Maggie's father; a well-known author and journalist. |
| Jessica |
Holt | Maggie's mother. Aka: Jess. |
| Maggie |
Holt | Protagonist and narrator. |
| Michael |
Jackson | American singer and performer. |
| Janie June |
Jones | The Holts' real estate agent. |
| Carole |
Lombard | Movie star and friend of William Garson. |
| Miss |
Pennyface | One of the ghosts Maggie talks to. |
| Brian |
Prince | A reporter. |
| Arthur |
Rosenfeld | Lawyer of Maggie's father. |
| Mister |
Shadow | The ghost who talks to Maggie. |
| Lila |
Weber | Child psychologist. |
| Allie |
| Maggie's best friend and coworker. |
| Buster |
| Petra's teddy bear. |
| Carl |
| Jess's new husband. |
| Minnie |
| Maggie's imaginary friend. |
