Patricia McPherson (born November 27, 1954 in Oak Harbor, Washington) is an American actress. She is most well known for her role in the 1980s hit TV series Knight Rider as Bonnie Barstow, KITT's mechanic. She appeared in season one and was absent from season two, but she was subsequently asked to return to the show, which she did in the season-three opener, remaining from 1984 until the end of the series in 1986.
Patricia has made guest appearances in a variety of television shows including Starman, Murder She Wrote, MacGyver, Matlock, and Star Trek: The Next Generation in the season 1 episode entitled Angel One as Ariel.