Dawson Casting: If this were a show about high school and not middle school, this would be averted, but by the end of the series, many of the cast memebers were slightly older than their characters and it is noticeable, definitely not as badly as other shows though.
What Could Have Been: Before the High School idea, there were some pilots shot, where Cookie was a lot taller, and Moze had some differences in personality.
