User blog comment:Artemis C./SuperGirl/@comment-5282880-20121004024744/@comment-1038387-20121004083813


 * Power Girl won't really work, with her multiverse origin (I have been wrong before though)
 * Matrix served time as Supergirl before she merged with Linda. See, for example, The Death of Superman.
 * There's indeed two different Kara Zor-Els, one pre-Crisis and one post-Crisis. (Actually, there was a clone post-Crisis, but not counting her). I counted them as one because they are essentially the same character, even if they're not continuitially (is that a word). They rebooted her origin a bit, and it actually makes more sense than the Silver Age origin.