A mysterious castle was once a fairytale estate, but today, the building is said to be haunted, and experts investigate the secrets of this eerie fortress and the ghostly stories inside. Stories: 1) Gwrych Castle, North Wales, UK; 2) Keroman U-Boat Base, Lorient, France; 3) Fort Jackson, Louisiana, USA
| Name | Type | Role | |
|---|---|---|---|
| Tom Williams | Producer | Series Producer | |
| Annie MacKinder | Producer | Shooting Producer | |
| Andrew Lessner | Producer | for SCIENCE CHANNEL | |
| Luke Wales | Producer | Series Producer | |
| Mark Sauer | Guest Star | Self - Helicopter Pilot | |
| Claire Barratt | Guest Star | Self - Engineer | |
| Geoffrey 'Geoff' Wawro | Guest Star | Self - Historian and Author | |
| Andrew Gough | Guest Star | Self - Historian and Author | |
| Christophe Cerino | Guest Star | Self - Maritime Historian | |
| Michele Mitchell | Guest Star | Self - Historian and Author | |
| Mark Barker | Guest Star | Self - Architectural Historian | |
| James S. Corum | Guest Star | Self - Military Historian | |
| James Madere | Guest Star | Self - Local Historian, Fort Jackson, Louisiana | |
| Dominic Selwood | Guest Star | Self - Historian and Author | |
| Jim Meigs | Guest Star | Self - Author and Journalist | |
| Fran Scott | Guest Star | Self - Scientist | |
| Bruce Burgess | Executive Producer | ||
| Henry Scott | Executive Producer | ||
| Neil Laird | Executive Producer | for SCIENCE CHANNEL | |
| Annie MacKinder | Director | ||
| Luke Wales | Director | ||
| Tom Williams | Director |