Kelly was born in California and is the daughter of choreographer Maurice Kelly. She worked several years as a background actress in television series such as Knight Rider before she made her career in the stunt business. She doubled actresses such as Tracy Scoggins (in Lois & Clark: The New Adventures of Superman, Watchers II, Timebomb, and Dead On), Leslie Hope, Ashley Judd, Kelly Lynch, Alexandra Paul, Mimi Rogers, Meg Ryan, Melinda Clarke, Denise Crosby, Michelle Forbes, Teri Hatcher (in Lois & Clark, Tango & Cash, Brain Smasher, and 2 Days in the Valley), Julia Roberts, and Geena Davis.