Reparto y equipo
-
John WilliamsSir Roger Haversham - Richard BasehartNicholas Frame
- Honor BlackmanLillian Stanhope
- Bernard FoxDet. Chief Supt. William Durk
- Wilfrid Hyde-WhiteTanner
- John FraserDet. Sgt. O'Keefe
- Richard PearsonDiver
- Arthur MaletFenwick
- Harvey JasonThe Director
- Ronald LongMr. Jones
- John OrchardCountry Constable
- Peter ChurchConstable
- Walker EdmistonGardener