| In a Boston hospital, All Souls Hospital, Dr. Mitchell Grace tries to discover the truth about the haunting that date as far back as the Civil War. The hospital's lower levels, once a mental asylum, are haunted by ghosts of dead patients, including Lazarus, an orderly who has been benevolently haunting the hospital since his days working with Dr. Ambrosius after the Civil War. |
| Name | Character | Episodes |
|---|---|---|
| Kari Matchett | Dr. Stefani Volette | 6 |
| Adam Rodriguez | Patrick Fortado | 6 |
| Irma P. Hall | 6 | |
| Daniel Cosgrove | 6 | |
| Christian Tessier | 6 | |
| Reiko Aylesworth | Philomena Cullen, M.D. | 6 |
| Karen Cliche | 6 | |
| Serena Scott Thomas | 6 | |
| Jean LeClerc | 3 | |
| Emily VanCamp | 1 | |
| Chad Donella | Jordan Terrence Holland (as Chad E. Donella) | 1 |
| Nigel Bennett | 1 | |
| Marcel Jeannin | 1 | |
| Tara Nicodemo | Marianna | 1 |
| Jonathan Koensgen | 1 | |
| Gillian Ferrabee | 1 | |
| Anik Matern | 1 | |
| Ilona Elkin | 1 |