Shattuck was born in Atlanta, Georgia. She has appeared in hundreds of commercials, TV, film, and stage productions. Some roles include "Dallas", "Life Goes On", "On Deadly Ground" as well as multiple Shakespearean roles. She appeared in both nighttime and daytime soaps, sitcoms, mini-series and starred in multiple films. As a model, she appeared on the cover of Playboy in April 1980, and numerous other magazines. In 1982, while working as a model in Atlanta, she was cast in the music video of the .38 Special (band) song "Caught Up In You".

Shattuck is also a fiction Writer who has written four mystery novels featuring Callaway Wilde, a wealthy Los Angeles socialite, the first of which, "Loaded" was picked as one of the best of 2003 by Publisher's Weekly. Other titles in the Callaway Wilde series are "Lethal", "Liar", and "Legacy". She also wrote a psychic series featuring Greer Sands, "Eye of the Beholder" and "Speak of the Devil" and two hardcover literary fiction novels, "Invisible Ellen" and the sequel, "Becoming Ellen."

Shattuck was married to actor Ronn Moss (with whom she has two daughters — Creason and Caleb) from January 1990 to July 2002. In 2009 she married Joseph Paul Stachura, the owner and managing artistic Director of the Knightsbridge Theatre, The National American Shakespeare Company, as well as the Director of Knightsbridge Theatre Films. The couple has produced two movies together, "Redemption" and "Scream at the Devil."