More than one billion people use the London Underground annually, yet few of them know just how haunted the tube really is. This hair-raising documentary investigates the supernatural secrets of the oldest underground network in the world, exploring the graves, church crypts and plague pits that tube tunnels have disrupted.
| Actor | Role |
|---|---|
 Paul McGannNarrator | Narrator |
| MMaurice GrosseSelf | Self |
| KKaren CollettSelf | Self |