American ballet dancer and actress best known for her role as Batgirl from the 1960s TV series Batman, Yvonne Joyce Craig has died at age 78 at her Pacific Palisades home on Monday night.

Craig died “from complications brought about from breast cancer that had metastasized to her liver,” her family said in a statement.

“She had been in chemo almost continuously for the past two plus years since being diagnosed and that had weakened her immune system as well as her body,” the statement reads. “This didn’t dampen her sense of humor or her spirit, she intended to fight and win this battle. In the end, her mind still wanted to fight but her body had given up.”

“Please celebrate Yvonne in your own way and the work she has left behind for you to continue to remember her by and enjoy,” the statement added.

Craig featured in various TV series including The Six Million Dollar Man, Mod Squad, Voyage to the Bottom of the Sea, Love American Style, Emergency, and Courtship of Eddie’s Father.

She was survived by her husband, Kenneth Aldrich, her sister Meridel Carson and nephews, Christopher and Todd Carson.