Kirk Douglas plays Peter Sandza, a man on a mission to save his son with psychic abilities from a sinister organization.
John Cassavetes portrays Ben Childress, a man involved in a covert government project aiming to exploit individuals with psychic powers.
Amy Irving takes on the role of Gillian Bellaver, a young girl with paranormal abilities who becomes entangled in the unfolding events.
Carrie Snodgress plays Hester, a character whose connection to the mysterious occurrences adds layers to the plot.
Charles Durning embodies Dr. Jim McKeever, a figure involved in the scientific aspects of the psychic phenomena central to the story.
Fiona Lewis portrays Dr. Susan Charles, a character whose role in the narrative contributes to the intrigue surrounding the psychic abilities.
Andrew Stevens takes on the role of Robin Sandza, a key character whose fate shapes the events that unfold.
Carol Eve Rossen embodies Dr. Ellen Lindstrom, a character involved in the scientific research related to psychic powers in the movie.
Rutanya Alda plays Kristen, a character whose interactions with others provide insights into the unfolding mysteries.
William Finley portrays Raymond Dunwoodie, a character with links to the secretive organization pursuing those with psychic abilities.
Jane Lambert takes on the role of Vivian Nuckells, a character whose presence adds to the unsettling atmosphere of the film.
Alice Nunn portrays Mrs. Callahan, a character whose interactions with the main figures reveal additional layers to the story.
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