She is a talented actress with more than 60 film and television credits to her name.
The Santa Rosa, California native's most notable roles came in the 1980s and 1990s.
In one of her signature roles, she terrified moviegoers as a psychotic nanny in one of the most iconic thrillers of the 1990s.
However, her breakthrough role came nearly a decade earlier as she seduced Tom Cruise onscreen as their relationship was rumored to move into real life.
The portrayal solidified her as one of the biggest sex symbols of the era as she received much praise for her sultry performance.
Now, the thespian has been seen on a rare outing in Los Angeles at 67-years-old. Can you guess who she is?
She is a talented actress with more than 60 film and television credits to her name
Now, the thespian has been seen on a rare outing in Los Angeles at 67-years-old - Can you guess who she is?
It's Rebecca De Mornay star of 1983's Risky Business and 1992's The Hand That Rocks The Cradle!
In Risky Business, she starred as the call girl Lana whom Cruise's teenage character Joel calls for her services while his parents are out of town.
However, the morning after Joel is shocked at Lana's 'bill' and resorts to turning his house into a brothel to raise the money fast.
De Mornay and Cruise, 64, allegedly had a sexual relationship while filming their box office hit, according to former costar Curtis Armstrong's 2017 memoir, Revenge of the Nerd.
Armstrong, now 72, claimed in his tell-all book that 'it's no secret that Tom engaged in an intense affair during the shooting [with De Mornay]' behind her then-boyfriend Harry Dean Stanton's back.
De Mornay and Cruise seemed to continue to date after the film wrapped. In 1985, they were spotted together at a screening for the movie The Breakfast Club.
Then, just 19, and relatively unknown, Risky Business was the last movie he was just 'Tom' before becoming Tom Cruise, the international movie star, we know today, according to Armstrong, who was 28 when he starred across from him in the eighties hit.
Their film follows Joel Goodsen (Cruise) who hires Lana (De Mornay) for a night of delight when his parents go on holiday.
It's Rebecca De Mornay - star of 1983's Risky Business opposite Tom Cruise (Above)
De Mornay looked stunning in an monochrome casual look
Following his romance with De Mornay, Cruise went on to date Cher in 1985, before tying the knot with Mimi Rogers, just two years later.
After his and Rogers' three-year marriage came to an end in 1990, he married ex-wife Nicole Kidman.
The pair were together for 11 years, and adopted two children, before calling it quits in 2001.
She went on to marry country singer, Keith Urban, in 2006, after about a year of dating. They are parents to daughter Sunday Rose, 18, and Faith Margaret, 15, and finalized their divorce in January.
Meanwhile, he and Katie Holmes ended their marriage, after six years, in 2012.
De Mornay married writer Bruce Wagner in 1986, but they ultimately divorced in 1990. She was briefly engaged to singer Leonard Cohen, before her past relationship with sportscaster Patrick O'Neal.
She and O'Neal share two daughters together: 29-year-old Sophia and 25-year-old Veronica.
De Mornay's other memorable movies from the 1980s include The Trip To Bountiful with Geraldine Page and John Heard, plus Runaway Train with Jon Voight and Eric Roberts.
De Mornay and Cruise seemed to continue to date after the film wrapped. In 1985, they were spotted together at a screening for the movie The Breakfast Club (Above, in Hollywood in 1983)
In 1992 she was in The Hand That Rocks The Cradle portraying psychotic nanny Mrs. Mott
Then in 1992 came the release of one of her biggest hit movies, and one of those that remains best-remembered by her fans to this day.
The Hand That Rocks The Cradle saw her portray Mrs. Mott, the widow of an OBGYN who commits suicide amid a flood of sexual abuse allegations from patients.
Shattered by her husband's loss, Mrs. Mott miscarries the child she was pregnant with at the time that he fell under scandal and killed himself.
She becomes bent on revenge and assumes a new identity as a nanny called Peyton Flanders - in the home of Annabella Sciorra's character Claire, one of the women whose claims brought down Dr. Mott.
Her unfolding vengeance plot is the main storyline of The Hand That Rocks The Cradle, a smash hit that drew praise for Rebecca's scenery-chewing work.
Rebecca's more recent work includes the 2005 comedy classic Wedding Crashers and a role on the Marvel series Jessica Jones.