Nicole Kidman plays Rae Ingram, the protagonist who becomes entangled in a life-threatening situation while sailing with her husband.
Sam Neill portrays John Ingram, Rae's husband, who must navigate a perilous situation at sea to protect his wife.
Billy Zane takes on the role of Hughie Warriner, a mysterious stranger whose presence triggers a series of dangerous events.
George Shevtsov plays the Doctor, a minor character who adds to the tension and suspense in the film.
Rod Mullinar portrays Russell Bellows, another character who becomes involved in the escalating drama.
Joshua Tilden takes on the role of Danny, a character whose actions have significant consequences for the main characters.
Michael Long appears as the Specialist Doctor, offering medical expertise in a critical moment in the story.
Lisa Collins is 'Orpheus' Cruise Girl, one of the characters encountered during the unsettling events on the open sea.
Paula Hudson-Brinkley plays another 'Orpheus' Cruise Girl, contributing to the mysterious atmosphere of the film.
Sharon Cook portrays an additional 'Orpheus' Cruise Girl, adding to the tense dynamics among the characters.
Malinda Rutter appears as one more 'Orpheus' Cruise Girl, creating a sense of unease aboard the vessel.
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