Roy Scheider portrays Harry Mitchell, a wealthy businessman who becomes embroiled in a blackmail plot that threatens his life and marriage.
Ann-Margret plays Barbara Mitchell, Harry's strong-willed wife who must confront the repercussions of her husband's involvement in a dangerous game of deception.
Vanity takes on the role of Doreen, a seductive woman who becomes entangled in the blackmail scheme, adding complexity to the unfolding story.
John Glover portrays Alan Raimy, a key player in the blackmail plot who proves to be a formidable adversary for Harry Mitchell.
Robert Trebor embodies the character of Leo Franks, a cunning individual involved in the blackmail conspiracy that puts Harry's life at risk.
Lonny Chapman plays Jim O'Boyle, a seasoned detective who becomes involved in the investigation of the blackmail scheme, adding tension to the narrative.
Kelly Preston portrays Cini, a character whose presence complicates the already intricate web of deceit surrounding the main characters.
Doug McClure takes on the role of Mark Arveson, a character whose motives and actions contribute to the escalating tension in the film.
Clarence Williams III embodies Bobby Shy, a mysterious figure whose involvement in the blackmail plot adds layers of intrigue to the storyline.
Alex Henteloff plays Dan Lowenthal, a character who plays a significant role in the unfolding events that threaten to unravel Harry Mitchell's life.
Michelle Walker portrays the Counter Girl, a minor character whose interactions with the main cast members help to shape the narrative of the film.
Philip Bartko appears as Test Site Worker, a character whose involvement in the story adds a sense of urgency and danger to the unfolding events.
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