BBC investigation documentary on the Chappaquiddick incident, which proposes an alternative explanation to the death of Mary Jo Kopechne in Senator Ted Kennedy’s car in 1969
| Actor | Role |
|---|---|
 Ian HolmNarrator | Narrator |
| JJim ArenaSelf | Self |
| RRobert DuboisSelf | Self |
 John F. KennedySelf (archive footage) | Self (archive footage) |
 Robert F. KennedySelf (archive footage) | Self (archive footage) |
| MMary Jo KopechneSelf (archive footage) | Self (archive footage) |