Began her modeling career after being spotted by a modeling scout in a Denver studio, Kathy claimed to have landed a Cosmopolitan cover on her first day in New York, and a TV commercial with Joe Namath on her second day.
Worked as a model for Wilhelmina Models, the talent management agency formed by Dutch supermodel Wilhelmina Cooper.
Married Denver physician Dr. Fred Speirs at the age of 17. Within eight years or less, the couple had divorced.
A five-time Cosmopolitan cover girl, model and regular in print and TV commercials, Speirs' nevertheless harbored the dream of becoming an actress.
Speirs' parents divorced when she was just 12 years old.