Wreck divers John Chatterton and Richie Kohler lead a 2006 expedition to the wreck of HMHS Britannic, Titanic's sister ship, which sank in the Aegean Sea in 1916, to work out why she went down in under an hour.
| Actor | Role |
|---|---|
| JJohn ChattertonSelf | Self |
| RRichie KohlerSelf | Self |
| PParks StephensonSelf | Self |