Kay Hooper was born in California, in an air force base hospital since her father was stationed there at the time. The family moved back to North Carolina shortly afterward, so she was raised and went to school there.
The oldest of three children, Kay has a brother two years younger and a sister seven years younger. Her father and brother are builders who own a highly respected construction company, and her mother worked for many years in personnel management before becoming Kays personal assistant, a position she held until her untimely death in March 2002. Kays sister Linda works as her Business Manager, Events Coordinator, and is playing a major role in the creation and operation of The Kay Hooper Foundation.

Kay graduated from East Rutherford High School and attended Isothermal Community College — where she quickly discovered that business classes did not in any way enthrall her. Switching to more involving courses such as history and literature, she also began to concentrate on writing, which had been a longtime interest. Very quickly hooked, she asked for a Christmas typewriter and began seriously working on her first novel. That book, a Regency romance titled Lady Thief, sold to Dell Publishing in 1980. She has since published more than 60 novels and four novellas.

Kay is single and lives in a very small town in North Carolina, not far from her father and siblings. Deigning to live with her are a flock of cats — Bonnie, Ginger, Oscar, Tuffy, Felix, Renny, and Isabel — of various personalities who all like sleeping on manuscripts and whatever research happens to be spread across Kays desk. And living amongst the many felines are two cheerfully tolerant dogs, a shelter rescue, Bandit, who looks rather like a small sheepdog, and a Sheltie named Lizzie.

Kay Robbins is a pseudonym used by her.