Peter Cushing as Reverend Dr. Blyss

Patrick Allen as Captain Collier

Oliver Reed as Harry Cobtree

Yvonne Romain as Imogene Clegg

Michael Ripper as Jeremiah Mipps

Martin Benson as Mr. Rash

David Lodge as Navy Bosun

Derek Francis as Squire Anthony Cobtree

Milton Reid as The Mulatto

Rupert Osborne as Gerry

Jack MacGowran as Frightened Man

Daphne Anderson as Mrs. Rash

Bob Head as Peg-Leg

Peter Halliday as Sailor Jack Pott

Terry Scully as Sailor Dick Tate

Sydney Bromley as Old Tom Ketch

Gordon Rollings as Wurzel

Colin Douglas as Pirate Bosun

Bill Brandon as Sailor (Uncredited)

Gerry Crampton as Tattooed Sailor (Uncredited)

Harold Gee as Fiddler (Uncredited)

Kate O'Mara as Girl at Inn (Uncredited)

Jack Sharp as Churchgoer (Uncredited)

Fred Wood as Parishioner (Uncredited)