Kelly is a character who appeared in Seasons 10-11 of Barney & Friends. She was portrayed by Alexandra O'Brien. She was a contestant for the song Mr. Knickerbocker. Appearances Can You Sing That Song? Sharing The Emperor's Contest Trivia BJ was present in all of her appearances. Retrieved from "https://barney.fandom.com/wiki/Kelly_(Alexandra_O%27Brien)?oldid=232194" Categories: Characters Human Characters Female Characters Kids Minor Kids Season 10 Characters Season 11 Characters Community content is available under CC-BY-SA unless otherwise noted.