Kimberly Drummond is the only biological child and daughter of wealthy widower, Phillip Drummond (Conrad Bain). She was born on Park Avenue in New York City on October 22, 1964. Kimberly was shown as a caring, loving big sister to both Willis and Arnold, but as a wealthy, coming of age teenager, she suffered from various problems. Several such instances took place in season 6, one of which involved a two-part "very special" episode on the dangers of hitchhiking, where she was nearly a victim of sexual assault by a deranged man named Bill (Woody Eney). In another episode, no one in the family knew that she was suffering from bulimia, though she later admitted to having a Problem and agreed to seek help.