Just a few months after her "Grease" co-star Jeff Conaway died, actress Annette Charles, known to "Grease" fans as Cha Cha, passed away at age 63, CNN has confirmed. Her rep says that she died at her home in Los Angeles on Wednesday night due to complications from cancer. According to TMZ, she'd learned of … Continue reading 'Grease' actress Annette Charles dies at 63