Born in Oakland, California and raised first in Alameda and then Moraga, California. She competed in the International Modeling & Talent Association (IMTA), where she was recognized as the second runner up for "Young Miss Dancer of the Year," and first runner up for "Miss Barbizon Young Miss Talent of the Year." She was discovered there by a manager and agent and immediately moved to Los Angeles for her first pilot season at age 13. Her breakthrough role was playing Collen Carlton On Young and the Restless for 3 years. Lyndsy is also an accomplished dancer and unwinds in dance classes when she is not working. She has a younger sister, Hannah Leigh Dworkin, who is following in her footsteps.