Fahey was born in Carmel, Maine, near Bangor in 1933, and grew up in Southwest Harbor near Bar Harbor, Maine, where she was a Cheerleader at Pemetic High School. She began competing in local beauty pageants in the early 1950s. She acted one season at the Pasadena Playhouse before breaking into TV, and became an avid skier in California. She invested in stocks and one of her contracts stipulated that she have a stock ticker in her dressing room. Besides baseball player Joe DiMaggio, she also dated actor George Hamilton. She died on May 6, 1973, at age 40 at St. John's Hospital in Santa Monica, California, after a long battle with cancer. She is buried in Mt. Pleasant Cemetery in Bangor.