Nancy McKeon – Then
Nancy played the role of Jo, who was probably the most dominant character on the show! When a significant number of the cast was being cut, 15-year-old Jo was added to season two.
Jo was the classic troublemaker with a big mouth who did whatever she pleased (these were the elements the writers took away from first-season Blair and gave to second-season Jo). Over the course of the show, Jo’s boyish appearance softened to a more feminine and attractive manner, as well as introduced romantic relationships for some added spice.