1792. Kapitein Collier en zijn crew zijn door het Engelse hof naar een klein kustplaatsje gestuurd om daar op zoek te gaan naar smokkelaars. Tijdens zijn onderzoek ontdekt hij de mysterieuze geesten uit het omringende moeras. Collier vermoedt dat de smokkelaars bende hier achter zit en dat de iets te vriendelijke dominee Blyss er meer van af weet.
Nee, helaas is Captain Clegg nog niet beschikbaar op Netflix in Nederland.
| Production | John Temple-Smith | Producer |
| Art | Bernard Robinson | Production Design |
| Crew | Barbara S. Harper | Additional Dialogue |
| Editing | Eric Boyd-Perkins | Editor |
| Costume & Make-Up | Roy Ashton | Makeup Artist |
| Camera | Arthur Grant | Director of Photography |
| Art | Don Mingaye | Art Direction |
| Directing | Peter Graham Scott | Director |
| Writing | Anthony Hinds | Screenplay |
| Sound | Don Banks | Original Music Composer |
| Writing | Russell Thorndike | Novel |
| Costume & Make-Up | Frieda Steiger | Hairstylist |
| Art | Arthur Banks | Construction Manager |
| Directing | John Peverall | Assistant Director |
| Directing | Peter Medak | Second Assistant Director |
| Production | Don Weeks | Production Manager |
| Crew | Paddy Hayes | Stunts |
| Costume & Make-Up | Rosemary Burrows | Wardrobe Master |
| Sound | Philip Martell | Music Director |
| Crew | Ian Scoones | Special Effects Assistant |
| Camera | Harry Oakes | Focus Puller |
| Camera | Len Harris | Camera Operator |
| Costume & Make-Up | Molly Arbuthnot | Wardrobe Supervisor |
| Editing | James Needs | Supervising Editor |
| Art | Lawrence Wren | Painter |
| Sound | Terry Poulton | Sound Editor |
| Camera | Tom Edwards | Still Photographer |
| Editing | Chris Barnes | Assistant Editor |
| Lighting | Jack Curtis | Electrician |
| Directing | Tilly Day | Continuity |
| Crew | Brian Johnson | Special Effects Assistant |
| Sound | Jock May | Sound Recordist |
| Crew | Les Bowie | Special Effects |
