You might remember actress Alice Pearce as the quirky and nosy neighbor Gladys Kravitz. In real life, Alice Pearce disappeared from the world of Bewitched suddenly she passed away in March 1966 from ovarian cancer. Pearce received her cancer diagnosis four months before she landed her role on the show. She had surgery, but doctors informed her that her ovarian cancer was terminal. She never told her coworkers about her illness. Although, if you watch the second season of the show, Alice’s drastic weight loss was quite obvious.