Detective Shay Williams and her partner become trapped inside the Ursuline Convent with a group of tourists when the Casket Girls escape from their attic prison for the first time in over 300 years.
| Actor | Role |
|---|---|
 Gabrielle UnionDetective Shay Williams | Detective Shay Williams |
 Mike ColterNot listed | Not listed |
 Raúl CastilloNot listed | Not listed |
 Matt FrewerNot listed | Not listed |
 Thomas LennonNot listed | Not listed |
 Hilary JardineJenny | Jenny |
 Charlotte KavanaghLa Mer | La Mer |
 Philip GrangerCaptain Khalil | Captain Khalil |
 Hazel Bartlett-SiasEmily | Emily |
 Talisa Mae StewartNot listed | Not listed |
| SSébastien DuncanYoun Boy | Youn Boy |
 Ana PachecoNot listed | Not listed |
 Haylie HansenNot listed | Not listed |
 Jake ManleyNot listed | Not listed |
 Carolina RoloNot listed | Not listed |
| YYari PerniaNot listed | Not listed |
 Lucia MorrisNot listed | Not listed |