Actress Debbie Watson portrayed the title role in this pleasant NBC situation comedy. Karen Scott was a cheerful, upbeat, happy-go-lucky 16-year-old, living with her parents Steve (Richard Denning) and Barbara (Mary LaRoche) and her younger sister Mimi (Gina Gillespie) in a Southern California apartment at 90 Bristol Court. Episodes played off of the contrast between the attitudes and behavior of Karen and those of Mimi, who was something of a tomboy. Karen initially ran as part of an experimental three-series sitcom line-up called 90 Bristol Court, that aired on Mondays from 7:30-9pm. Each of the shows in the Bristol trilogy (the others were Harris Against the World and Tom, Dick and Mary) followed the adventures in a different flat of the same apartment building. While the other two shows failed to connect with an audience and folded after a few months, Karen experienced a slightly happier fate: it ran an entire season and took its final bow in August 1965. Film and TV history buffs might be intrigued to know that Karen gave a young Richard Dreyfuss one of his first supporting roles, a couple of years before his bit part in The Graduate and at least a decade before he became a star; he played David Rowe III. ~ Nathan Southern, Rovi