Talk:List of Rise of the Teenage Mutant Ninja Turtles episodes/@comment-39777723-20191012194234/@comment-36587160-20191013193100

Just because one of the characters isn't in an intro does not automatically mean that they're not going to appear in the show at all. For example, Karai never appeared in any of the 2003 series openings, until "Prodigal Son", when she became the new Shredder halfway in Season 4, and her first appearance was halfway through Season 2.