Her first movie role was as a water skier in Jaws 3-D (1989) and then All the Right Moves costaring with Tom Cruise. She eventually got her big break as Lorraine in Back to the Future.
On TV, Lea is known for her roles in Caroline in the City (1995 - 1999) and Switched at Birth (2011 - 2017), as well as many guest roles and as a competitor on Dancing With the Stars.
She can currently be seen as Victoria Spencer on The CW series The Spencer Sisters.