 | Peter Cushing als Reverend Dr. Blyss |
 | Patrick Allen als Captain Collier |
 | Oliver Reed als Harry Cobtree |
 | Yvonne Romain als Imogene Clegg |
 | Michael Ripper als Jeremiah Mipps |
 | Martin Benson als Mr. Rash |
 | David Lodge als Navy Bosun |
 | Derek Francis als Squire Anthony Cobtree |
 | Milton Reid als The Mulatto |
 | Rupert Osborne als Gerry |
 | Jack MacGowran als Frightened Man |
 | Daphne Anderson als Mrs. Rash |
| Bob Head als Peg-Leg |
 | Peter Halliday als Sailor Jack Pott |
 | Terry Scully als Sailor Dick Tate |
 | Sydney Bromley als Old Tom Ketch |
 | Gordon Rollings als Wurzel |
 | Colin Douglas als Pirate Bosun |
 | Bill Brandon als Sailor (Uncredited) |
| Gerry Crampton als Tattooed Sailor (Uncredited) |
| Harold Gee als Fiddler (Uncredited) |
 | Kate O'Mara als Girl at Inn (Uncredited) |
| Jack Sharp als Churchgoer (Uncredited) |
 | Fred Wood als Parishioner (Uncredited) |
| Peter Graham Scott | Director |
| Russell Thorndike | Novel |
| Barbara S. Harper | Additional Dialogue |
| Anthony Hinds | Screenplay |
| John Temple-Smith | Producer |
| Don Banks | Original Music Composer |
| Arthur Grant | Director of Photography |
| Eric Boyd-Perkins | Editor |
| Bernard Robinson | Production Design |
| Don Mingaye | Art Direction |
| Roy Ashton | Makeup Artist |
| Frieda Steiger | Hairstylist |
| Don Weeks | Production Manager |
| John Peverall | Assistant Director |
| Peter Medak | Second Assistant Director |
| Arthur Banks | Construction Manager |
| Lawrence Wren | Painter |
| Jock May | Sound Recordist |
| Terry Poulton | Sound Editor |
| Les Bowie | Special Effects |
| Brian Johnson | Special Effects Assistant |
| Ian Scoones | Special Effects Assistant |
| Paddy Hayes | Stunts |
| Len Harris | Camera Operator |
| Jack Curtis | Electrician |
| Tom Edwards | Still Photographer |
| Harry Oakes | Focus Puller |
| Molly Arbuthnot | Wardrobe Supervisor |
| Rosemary Burrows | Wardrobe Master |
| James Needs | Supervising Editor |
| Chris Barnes | Assistant Editor |
| Philip Martell | Music Director |
| Tilly Day | Continuity |
